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157813768 = 2372818103
BaseRepresentation
bin10010110100000…
…00110000001000
3101222221202210101
421122000300020
5310400020033
623354255144
73624252310
oct1132006010
9358852711
10157813768
1181099902
1244a274b4
1326906638
1416d60440
15dcc497d
hex9680c08

157813768 has 16 divisors (see below), whose sum is σ = 338172480. Its totient is φ = 67634448.

The previous prime is 157813763. The next prime is 157813781. The reversal of 157813768 is 867318751.

It is not an unprimeable number, because it can be changed into a prime (157813763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1408996 + ... + 1409107.

It is an arithmetic number, because the mean of its divisors is an integer number (21135780).

Almost surely, 2157813768 is an apocalyptic number.

It is an amenable number.

157813768 is an abundant number, since it is smaller than the sum of its proper divisors (180358712).

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

157813768 is a wasteful number, since it uses less digits than its factorization.

157813768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818116 (or 2818112 counting only the distinct ones).

The product of its digits is 282240, while the sum is 46.

The square root of 157813768 is about 12562.3949945860. The cubic root of 157813768 is about 540.3995305718.

The spelling of 157813768 in words is "one hundred fifty-seven million, eight hundred thirteen thousand, seven hundred sixty-eight".

Divisors: 1 2 4 7 8 14 28 56 2818103 5636206 11272412 19726721 22544824 39453442 78906884 157813768