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115156660 = 22520632791
BaseRepresentation
bin1101101110100…
…10011010110100
322000200120020111
412313102122310
5213440003120
615232112404
72565546463
oct667223264
9260616214
10115156660
115a0039a3
1232695704
131ab1c548
14114189da
15a19a75a
hex6dd26b4

115156660 has 24 divisors (see below), whose sum is σ = 242032896. Its totient is φ = 46023840.

The previous prime is 115156637. The next prime is 115156673. The reversal of 115156660 is 66651511.

It is a super-2 number, since 2×1151566602 = 26522112684711200, which contains 22 as substring.

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, 39865 + ... + 42655.

It is an arithmetic number, because the mean of its divisors is an integer number (10084704).

Almost surely, 2115156660 is an apocalyptic number.

115156660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115156660 is an abundant number, since it is smaller than the sum of its proper divisors (126876236).

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

115156660 is a wasteful number, since it uses less digits than its factorization.

115156660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4863 (or 4861 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 115156660 is about 10731.1071190255. The cubic root of 115156660 is about 486.5151328638.

The spelling of 115156660 in words is "one hundred fifteen million, one hundred fifty-six thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 2063 2791 4126 5582 8252 10315 11164 13955 20630 27910 41260 55820 5757833 11515666 23031332 28789165 57578330 115156660