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115662980 = 22515138299
BaseRepresentation
bin1101110010011…
…10000010000100
322001122021210002
412321032002010
5214102203410
615251020432
72603055566
oct671160204
9261567702
10115662980
115a31a344
123289a718
131ac68b44
141150b336
15a24a7a5
hex6e4e084

115662980 has 24 divisors (see below), whose sum is σ = 244507200. Its totient is φ = 45957600.

The previous prime is 115662973. The next prime is 115662997. The reversal of 115662980 is 89266511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16130 + ... + 22169.

It is an arithmetic number, because the mean of its divisors is an integer number (10187800).

Almost surely, 2115662980 is an apocalyptic number.

115662980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115662980 is an abundant number, since it is smaller than the sum of its proper divisors (128844220).

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

115662980 is a wasteful number, since it uses less digits than its factorization.

115662980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38459 (or 38457 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 115662980 is about 10754.6724729301. The cubic root of 115662980 is about 487.2271258342.

The spelling of 115662980 in words is "one hundred fifteen million, six hundred sixty-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 151 302 604 755 1510 3020 38299 76598 153196 191495 382990 765980 5783149 11566298 23132596 28915745 57831490 115662980