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157190472855 = 33513233894227
BaseRepresentation
bin1001001001100101001…
…0000100010010010111
3120000201212121101022000
42102121102010102113
510033411230112410
6200113505210343
714233216654653
oct2223122042227
9500655541260
10157190472855
1160733a188a9
122656a9309b3
1311a91185120
14787272da63
15414eebedc0
hex2499484497

157190472855 has 64 divisors (see below), whose sum is σ = 314030545920. Its totient is φ = 74021447808.

The previous prime is 157190472853. The next prime is 157190472911. The reversal of 157190472855 is 558274091751.

157190472855 is a `hidden beast` number, since 1 + 5 + 7 + 1 + 90 + 472 + 85 + 5 = 666.

It is not a de Polignac number, because 157190472855 - 21 = 157190472853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157190472853) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1906749 + ... + 1987478.

It is an arithmetic number, because the mean of its divisors is an integer number (4906727280).

Almost surely, 2157190472855 is an apocalyptic number.

157190472855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

157190472855 is a deficient number, since it is larger than the sum of its proper divisors (156840073065).

157190472855 is a wasteful number, since it uses less digits than its factorization.

157190472855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3894277 (or 3894271 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 54.

The spelling of 157190472855 in words is "one hundred fifty-seven billion, one hundred ninety million, four hundred seventy-two thousand, eight hundred fifty-five".

Divisors: 1 3 5 9 13 15 23 27 39 45 65 69 115 117 135 195 207 299 345 351 585 621 897 1035 1495 1755 2691 3105 4485 8073 13455 40365 3894227 11682681 19471135 35048043 50624951 58413405 89567221 105144129 151874853 175240215 253124755 268701663 447836105 455624559 525720645 759374265 806104989 1164373873 1343508315 1366873677 2278122795 2418314967 3493121619 4030524945 5821869365 6834368385 10479364857 12091574835 17465608095 31438094571 52396824285 157190472855