Base | Representation |
---|---|
bin | 1001001001100100100… |
… | …0000000110010010000 |
3 | 120000201200122110200102 |
4 | 2102121020000302100 |
5 | 10033410041241242 |
6 | 200113332511532 |
7 | 14233155366320 |
oct | 2223110006220 |
9 | 500650573612 |
10 | 157187837072 |
11 | 60732488572 |
12 | 26569a7b5a8 |
13 | 11a907714a6 |
14 | 7872245280 |
15 | 414eb4de32 |
hex | 2499200c90 |
157187837072 has 40 divisors (see below), whose sum is σ = 348479856576. Its totient is φ = 67284717696.
The previous prime is 157187837033. The next prime is 157187837099. The reversal of 157187837072 is 270738781751.
It is a super-2 number, since 2×1571878370722 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (56).
It is a junction number, because it is equal to n+sod(n) for n = 157187836999 and 157187837017.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755903 + ... + 941150.
Almost surely, 2157187837072 is an apocalyptic number.
It is an amenable number.
157187837072 is an abundant number, since it is smaller than the sum of its proper divisors (191292019504).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
157187837072 is a wasteful number, since it uses less digits than its factorization.
157187837072 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1697895 (or 1697889 counting only the distinct ones).
The product of its (nonzero) digits is 4609920, while the sum is 56.
The spelling of 157187837072 in words is "one hundred fifty-seven billion, one hundred eighty-seven million, eight hundred thirty-seven thousand, seventy-two".
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