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157187837072 = 2478271697053
BaseRepresentation
bin1001001001100100100…
…0000000110010010000
3120000201200122110200102
42102121020000302100
510033410041241242
6200113332511532
714233155366320
oct2223110006220
9500650573612
10157187837072
1160732488572
1226569a7b5a8
1311a907714a6
147872245280
15414eb4de32
hex2499200c90

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".

Divisors: 1 2 4 7 8 14 16 28 56 112 827 1654 3308 5789 6616 11578 13232 23156 46312 92624 1697053 3394106 6788212 11879371 13576424 23758742 27152848 47517484 95034968 190069936 1403462831 2806925662 5613851324 9824239817 11227702648 19648479634 22455405296 39296959268 78593918536 157187837072