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115072872 = 233113151281
BaseRepresentation
bin1101101101111…
…01111101101000
322000112022022020
412312331331220
5213424312442
615230224440
72565050265
oct666757550
9260468266
10115072872
1159a56a52
1232655120
131aac0375
14113d626c
15a1809ec
hex6dbdf68

115072872 has 64 divisors (see below), whose sum is σ = 293189760. Its totient is φ = 37632000.

The previous prime is 115072861. The next prime is 115072879. The reversal of 115072872 is 278270511.

It is not an unprimeable number, because it can be changed into a prime (115072879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409372 + ... + 409652.

It is an arithmetic number, because the mean of its divisors is an integer number (4581090).

Almost surely, 2115072872 is an apocalyptic number.

115072872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115072872 is an abundant number, since it is smaller than the sum of its proper divisors (178116888).

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

115072872 is a wasteful number, since it uses less digits than its factorization.

115072872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 115072872 is about 10727.2024312026. The cubic root of 115072872 is about 486.3971080774.

The spelling of 115072872 in words is "one hundred fifteen million, seventy-two thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 113 151 226 281 302 339 452 453 562 604 678 843 904 906 1124 1208 1356 1686 1812 2248 2712 3372 3624 6744 17063 31753 34126 42431 51189 63506 68252 84862 95259 102378 127012 127293 136504 169724 190518 204756 254024 254586 339448 381036 409512 509172 762072 1018344 4794703 9589406 14384109 19178812 28768218 38357624 57536436 115072872