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115266140 = 22511523937
BaseRepresentation
bin1101101111011…
…01001001011100
322000220010102022
412313231021130
5214002004030
615234315312
72566513613
oct667551134
9260803368
10115266140
115a079180
1232728b38
131ab5a322
141144687a
15a1bcde5
hex6ded25c

115266140 has 24 divisors (see below), whose sum is σ = 264064752. Its totient is φ = 41914880.

The previous prime is 115266127. The next prime is 115266143. The reversal of 115266140 is 41662511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115266143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261749 + ... + 262188.

It is an arithmetic number, because the mean of its divisors is an integer number (11002698).

Almost surely, 2115266140 is an apocalyptic number.

115266140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115266140 is an abundant number, since it is smaller than the sum of its proper divisors (148798612).

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

115266140 is a wasteful number, since it uses less digits than its factorization.

115266140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523957 (or 523955 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 115266140 is about 10736.2069652182. The cubic root of 115266140 is about 486.6692614695.

The spelling of 115266140 in words is "one hundred fifteen million, two hundred sixty-six thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 523937 1047874 2095748 2619685 5239370 5763307 10478740 11526614 23053228 28816535 57633070 115266140