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6788265040 = 2454112491657
BaseRepresentation
bin1100101001001110…
…01011010001010000
3122112002022121000201
412110213023101100
5102400243440130
63041332024544
7330135205114
oct62447132120
918462277021
106788265040
112973886aa7
121395462154
138424a049b
144857a1744
1529ae42bca
hex1949cb450

6788265040 has 80 divisors (see below), whose sum is σ = 16190370000. Its totient is φ = 2645360640.

The previous prime is 6788265031. The next prime is 6788265041. The reversal of 6788265040 is 405628876.

It can be written as a sum of positive squares in 8 ways, for example, as 1512276544 + 5275988496 = 38888^2 + 72636^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6788265041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4095892 + ... + 4097548.

It is an arithmetic number, because the mean of its divisors is an integer number (202379625).

Almost surely, 26788265040 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 6788265040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8095185000).

6788265040 is an abundant number, since it is smaller than the sum of its proper divisors (9402104960).

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

6788265040 is a wasteful number, since it uses less digits than its factorization.

6788265040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960 (or 2954 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 6788265040 is about 82390.9281413919. The cubic root of 6788265040 is about 1893.4460277540.

The spelling of 6788265040 in words is "six billion, seven hundred eighty-eight million, two hundred sixty-five thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 41 80 82 164 205 328 410 656 820 1249 1640 1657 2498 3280 3314 4996 6245 6628 8285 9992 12490 13256 16570 19984 24980 26512 33140 49960 51209 66280 67937 99920 102418 132560 135874 204836 256045 271748 339685 409672 512090 543496 679370 819344 1024180 1086992 1358740 2048360 2069593 2717480 4096720 4139186 5434960 8278372 10347965 16556744 20695930 33113488 41391860 82783720 84853313 165567440 169706626 339413252 424266565 678826504 848533130 1357653008 1697066260 3394132520 6788265040