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157138176 = 2831315739
BaseRepresentation
bin10010101110110…
…11110100000000
3101221200110001110
421113123310000
5310211410201
623332003320
73615436536
oct1127336400
9357613043
10157138176
1180778268
1244760540
132672ac90
1416c26156
15dbde6d6
hex95dbd00

157138176 has 72 divisors (see below), whose sum is σ = 450415840. Its totient is φ = 48347136.

The previous prime is 157138171. The next prime is 157138217. The reversal of 157138176 is 671831751.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157138171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2115 + ... + 17853.

Almost surely, 2157138176 is an apocalyptic number.

157138176 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157138176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225207920).

157138176 is an abundant number, since it is smaller than the sum of its proper divisors (293277664).

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

157138176 is a wasteful number, since it uses less digits than its factorization.

157138176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15771 (or 15757 counting only the distinct ones).

The product of its digits is 35280, while the sum is 39.

The square root of 157138176 is about 12535.4766961612. The cubic root of 157138176 is about 539.6272873914.

The spelling of 157138176 in words is "one hundred fifty-seven million, one hundred thirty-eight thousand, one hundred seventy-six".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 78 96 104 128 156 192 208 256 312 384 416 624 768 832 1248 1664 2496 3328 4992 9984 15739 31478 47217 62956 94434 125912 188868 204607 251824 377736 409214 503648 613821 755472 818428 1007296 1227642 1510944 1636856 2014592 2455284 3021888 3273712 4029184 4910568 6043776 6547424 9821136 12087552 13094848 19642272 26189696 39284544 52379392 78569088 157138176