Search a number
-
+
8040408080208 = 243761705755589
BaseRepresentation
bin111010100000000110110…
…1010101101111101010000
31001110122200212022120011120
41311000031222231331100
52023213223432031313
625033413521242240
71456620544014240
oct165001552557520
931418625276146
108040408080208
11261aa10825a49
12a9a350493380
13464290386aaa
141db22d115b20
15de2396a9d23
hex7500daadf50

8040408080208 has 160 divisors (see below), whose sum is σ = 24131353946880. Its totient is φ = 2259238625280.

The previous prime is 8040408080101. The next prime is 8040408080249. The reversal of 8040408080208 is 8020808040408.

It is a super-2 number, since 2×80404080802082 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 8040408080208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144612478 + ... + 144668066.

It is an arithmetic number, because the mean of its divisors is an integer number (150820962168).

Almost surely, 28040408080208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8040408080208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12065676973440).

8040408080208 is an abundant number, since it is smaller than the sum of its proper divisors (16090945866672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8040408080208 is a wasteful number, since it uses less digits than its factorization.

8040408080208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62725 (or 62719 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 42.

The spelling of 8040408080208 in words is "eight trillion, forty billion, four hundred eight million, eighty thousand, two hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 61 84 112 122 168 183 244 336 366 427 488 732 854 976 1281 1464 1708 2562 2928 3416 5124 6832 7057 10248 14114 20496 21171 28228 42342 49399 55589 56456 84684 98798 111178 112912 148197 166767 169368 197596 222356 296394 333534 338736 389123 395192 430477 444712 592788 667068 778246 790384 860954 889424 1167369 1185576 1291431 1334136 1556492 1721908 2334738 2371152 2582862 2668272 3013339 3112984 3390929 3443816 4669476 5165724 6026678 6225968 6781858 6887632 9040017 9338952 10172787 10331448 12053356 13563716 18080034 18677904 20345574 20662896 23736503 24106712 27127432 36160068 40691148 47473006 48213424 54254864 71209509 72320136 81382296 94946012 142419018 144640272 162764592 189892024 284838036 379784048 392291573 569676072 784583146 1139352144 1176874719 1569166292 2353749438 2746041011 3138332584 4707498876 5492082022 6276665168 8238123033 9414997752 10984164044 16476246066 18829995504 21968328088 23929785953 32952492132 43936656176 47859571906 65904984264 71789357859 95719143812 131809968528 143578715718 167508501671 191438287624 287157431436 335017003342 382876575248 502525505013 574314862872 670034006684 1005051010026 1148629725744 1340068013368 2010102020052 2680136026736 4020204040104 8040408080208