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115420660 = 22537915227
BaseRepresentation
bin1101110000100…
…10110111110100
322001011222101021
412320102313310
5214021430120
615241510524
72601026245
oct670226764
9261158337
10115420660
115a174283
12327a2444
131abb2764
1411486ccc
15a1edaaa
hex6e12df4

115420660 has 24 divisors (see below), whose sum is σ = 243038880. Its totient is φ = 46043424.

The previous prime is 115420639. The next prime is 115420681. The reversal of 115420660 is 66024511.

It is an interprime number because it is at equal distance from previous prime (115420639) and next prime (115420681).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34 + ... + 15193.

It is an arithmetic number, because the mean of its divisors is an integer number (10126620).

Almost surely, 2115420660 is an apocalyptic number.

115420660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115420660 is an abundant number, since it is smaller than the sum of its proper divisors (127618220).

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

115420660 is a wasteful number, since it uses less digits than its factorization.

115420660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15615 (or 15613 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 115420660 is about 10743.4007651209. The cubic root of 115420660 is about 486.8866324919.

The spelling of 115420660 in words is "one hundred fifteen million, four hundred twenty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 379 758 1516 1895 3790 7580 15227 30454 60908 76135 152270 304540 5771033 11542066 23084132 28855165 57710330 115420660