Search a number
-
+
8454148128 = 2532431096263
BaseRepresentation
bin1111101111110100…
…00001000000100000
3210211011222020000100
413313322001000200
5114303230220003
63514521422400
7416334034116
oct76772010040
923734866010
108454148128
113649167688
12177b33aa00
13a49662c1a
145a2b25ab6
15347307ba3
hex1f7e81020

8454148128 has 144 divisors (see below), whose sum is σ = 24830245440. Its totient is φ = 2726825472.

The previous prime is 8454148099. The next prime is 8454148151. The reversal of 8454148128 is 8218414548.

8454148128 is a `hidden beast` number, since 8 + 4 + 541 + 4 + 81 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1346725 + ... + 1352987.

It is an arithmetic number, because the mean of its divisors is an integer number (172432260).

Almost surely, 28454148128 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 8454148128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12415122720).

8454148128 is an abundant number, since it is smaller than the sum of its proper divisors (16376097312).

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

8454148128 is a wasteful number, since it uses less digits than its factorization.

8454148128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6431 (or 6420 counting only the distinct ones).

The product of its digits is 327680, while the sum is 45.

The square root of 8454148128 is about 91946.4416277215. The cubic root of 8454148128 is about 2037.1512949009.

The spelling of 8454148128 in words is "eight billion, four hundred fifty-four million, one hundred forty-eight thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 43 48 72 86 96 109 129 144 172 218 258 288 327 344 387 436 516 654 688 774 872 981 1032 1308 1376 1548 1744 1962 2064 2616 3096 3488 3924 4128 4687 5232 6192 6263 7848 9374 10464 12384 12526 14061 15696 18748 18789 25052 28122 31392 37496 37578 42183 50104 56244 56367 74992 75156 84366 100208 112488 112734 149984 150312 168732 200416 224976 225468 269309 300624 337464 449952 450936 538618 601248 674928 682667 807927 901872 1077236 1349856 1365334 1615854 1803744 2048001 2154472 2423781 2730668 3231708 4096002 4308944 4847562 5461336 6144003 6463416 8192004 8617888 9695124 10922672 12288006 12926832 16384008 19390248 21845344 24576012 25853664 29354681 32768016 38780496 49152024 58709362 65536032 77560992 88064043 98304048 117418724 176128086 196608096 234837448 264192129 352256172 469674896 528384258 704512344 939349792 1056768516 1409024688 2113537032 2818049376 4227074064 8454148128