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157105368 = 23327244531
BaseRepresentation
bin10010101110100…
…11110011011000
3101221121210001100
421113103303120
5310204332433
623331151400
73615242100
oct1127236330
9357553040
10157105368
1180755652
1244745560
1326719074
1416c18200
15dbd4b13
hex95d3cd8

157105368 has 72 divisors (see below), whose sum is σ = 494973180. Its totient is φ = 44886240.

The previous prime is 157105363. The next prime is 157105379. The reversal of 157105368 is 863501751.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157105363) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 18738 + ... + 25793.

Almost surely, 2157105368 is an apocalyptic number.

157105368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

157105368 is an abundant number, since it is smaller than the sum of its proper divisors (337867812).

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

157105368 is a wasteful number, since it uses less digits than its factorization.

157105368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44557 (or 44543 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 157105368 is about 12534.1680218513. The cubic root of 157105368 is about 539.5897295240.

The spelling of 157105368 in words is "one hundred fifty-seven million, one hundred five thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 49 56 63 72 84 98 126 147 168 196 252 294 392 441 504 588 882 1176 1764 3528 44531 89062 133593 178124 267186 311717 356248 400779 534372 623434 801558 935151 1068744 1246868 1603116 1870302 2182019 2493736 2805453 3206232 3740604 4364038 5610906 6546057 7481208 8728076 11221812 13092114 17456152 19638171 22443624 26184228 39276342 52368456 78552684 157105368