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157119055420 = 22561128786111
BaseRepresentation
bin1001001001010100000…
…1101000011000111100
3120000112220012222222211
42102111001220120330
510033234434233140
6200102434350204
714231361635605
oct2222501503074
9500486188884
10157119055420
11606a7679928
122654aa2b364
1311a7c43b3a2
14786705cdac
154148ab42ea
hex249506863c

157119055420 has 24 divisors (see below), whose sum is σ = 335359035648. Its totient is φ = 61817332800.

The previous prime is 157119055399. The next prime is 157119055441. The reversal of 157119055420 is 24550911751.

It is an interprime number because it is at equal distance from previous prime (157119055399) and next prime (157119055441).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64391836 + ... + 64394275.

It is an arithmetic number, because the mean of its divisors is an integer number (13973293152).

Almost surely, 2157119055420 is an apocalyptic number.

157119055420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157119055420 is an abundant number, since it is smaller than the sum of its proper divisors (178239980228).

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

157119055420 is a wasteful number, since it uses less digits than its factorization.

157119055420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128786181 (or 128786179 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 40.

The spelling of 157119055420 in words is "one hundred fifty-seven billion, one hundred nineteen million, fifty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 128786111 257572222 515144444 643930555 1287861110 2575722220 7855952771 15711905542 31423811084 39279763855 78559527710 157119055420