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115382015 = 572470947
BaseRepresentation
bin1101110000010…
…01011011111111
322001010000100222
412320021123333
5214014211030
615241011555
72600505500
oct670113377
9261100328
10115382015
115a148241
1232783bbb
131ab9aca8
1411476ba7
15a1e23e5
hex6e096ff

115382015 has 12 divisors (see below), whose sum is σ = 161064216. Its totient is φ = 79118928.

The previous prime is 115381979. The next prime is 115382023. The reversal of 115382015 is 510283511.

It is a happy number.

It is not a de Polignac number, because 115382015 - 28 = 115381759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235229 + ... + 235718.

It is an arithmetic number, because the mean of its divisors is an integer number (13422018).

Almost surely, 2115382015 is an apocalyptic number.

115382015 is a deficient number, since it is larger than the sum of its proper divisors (45682201).

115382015 is an equidigital number, since it uses as much as digits as its factorization.

115382015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470966 (or 470959 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 115382015 is about 10741.6020685929. The cubic root of 115382015 is about 486.8322868364.

The spelling of 115382015 in words is "one hundred fifteen million, three hundred eighty-two thousand, fifteen".

Divisors: 1 5 7 35 49 245 470947 2354735 3296629 16483145 23076403 115382015