Search a number
-
+
157688295456 = 2531642586411
BaseRepresentation
bin1001001011011011110…
…1000111000000100000
3120002000120100101112010
42102312331013000200
510040421200423311
6200235131232520
714251443252546
oct2226675070040
9502016311463
10157688295456
1160969a2833a
12266895a8740
1311b40357103
1478bc8b9d96
15417da57da6
hex24b6f47020

157688295456 has 24 divisors (see below), whose sum is σ = 413931775824. Its totient is φ = 52562765120.

The previous prime is 157688295371. The next prime is 157688295463. The reversal of 157688295456 is 654592886751.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 821293110 + ... + 821293301.

It is an arithmetic number, because the mean of its divisors is an integer number (17247157326).

Almost surely, 2157688295456 is an apocalyptic number.

157688295456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

157688295456 is an abundant number, since it is smaller than the sum of its proper divisors (256243480368).

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

157688295456 is a wasteful number, since it uses less digits than its factorization.

157688295456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642586424 (or 1642586416 counting only the distinct ones).

The product of its digits is 145152000, while the sum is 66.

The spelling of 157688295456 in words is "one hundred fifty-seven billion, six hundred eighty-eight million, two hundred ninety-five thousand, four hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 1642586411 3285172822 4927759233 6570345644 9855518466 13140691288 19711036932 26281382576 39422073864 52562765152 78844147728 157688295456