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115807242 = 23191015853
BaseRepresentation
bin1101110011100…
…01010000001010
322001220121200010
412321301100022
5214121312432
615254052350
72604226305
oct671612012
9261817603
10115807242
115a408771
123294a0b6
131acb96c5
1411547b3c
15a2783cc
hex6e7140a

115807242 has 16 divisors (see below), whose sum is σ = 243804960. Its totient is φ = 36570672.

The previous prime is 115807229. The next prime is 115807249. The reversal of 115807242 is 242708511.

It is a super-2 number, since 2×1158072422 = 26822634599293128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115807249) 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, 507813 + ... + 508040.

It is an arithmetic number, because the mean of its divisors is an integer number (15237810).

Almost surely, 2115807242 is an apocalyptic number.

115807242 is an abundant number, since it is smaller than the sum of its proper divisors (127997718).

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

115807242 is a wasteful number, since it uses less digits than its factorization.

115807242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015877.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 115807242 is about 10761.3773282048. The cubic root of 115807242 is about 487.4296082453.

The spelling of 115807242 in words is "one hundred fifteen million, eight hundred seven thousand, two hundred forty-two".

Divisors: 1 2 3 6 19 38 57 114 1015853 2031706 3047559 6095118 19301207 38602414 57903621 115807242