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157159044 = 223271135519
BaseRepresentation
bin10010101111000…
…00111010000100
3101221201111200100
421113200322010
5310213042134
623332244100
73615554430
oct1127407204
9357644610
10157159044
1180791a09
1244770630
1326737623
1416c2d9c0
15dbe5999
hex95e0e84

157159044 has 72 divisors (see below), whose sum is σ = 458115840. Its totient is φ = 44497152.

The previous prime is 157159039. The next prime is 157159061. The reversal of 157159044 is 440951751.

It is a super-2 number, since 2×1571590442 = 49397930221987872, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25717 + ... + 31235.

It is an arithmetic number, because the mean of its divisors is an integer number (6362720).

Almost surely, 2157159044 is an apocalyptic number.

157159044 is a gapful number since it is divisible by the number (14) 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 157159044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229057920).

157159044 is an abundant number, since it is smaller than the sum of its proper divisors (300956796).

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

157159044 is a wasteful number, since it uses less digits than its factorization.

157159044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5649 (or 5644 counting only the distinct ones).

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

The square root of 157159044 is about 12536.3090261847. The cubic root of 157159044 is about 539.6511738928.

It can be divided in two parts, 157 and 159044, that added together give a square (159201 = 3992).

The spelling of 157159044 in words is "one hundred fifty-seven million, one hundred fifty-nine thousand, forty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 113 126 226 252 339 452 678 791 1017 1356 1582 2034 2373 3164 4068 4746 5519 7119 9492 11038 14238 16557 22076 28476 33114 38633 49671 66228 77266 99342 115899 154532 198684 231798 347697 463596 623647 695394 1247294 1390788 1870941 2494588 3741882 4365529 5612823 7483764 8731058 11225646 13096587 17462116 22451292 26193174 39289761 52386348 78579522 157159044