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115342631 = 232337647
BaseRepresentation
bin1101101111111…
…11110100100111
322001001000100022
412313333310213
5214011431011
615240105355
72600252615
oct667776447
9261030308
10115342631
115a120698
123276525b
131ab860a1
14114666b5
15a1d58db
hex6dffd27

115342631 has 12 divisors (see below), whose sum is σ = 121120272. Its totient is φ = 109830336.

The previous prime is 115342609. The next prime is 115342639. The reversal of 115342631 is 136243511.

It is not a de Polignac number, because 115342631 - 26 = 115342567 is a prime.

It is a super-2 number, since 2×1153426312 = 26607845052004322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115342631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115342639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177950 + ... + 178596.

It is an arithmetic number, because the mean of its divisors is an integer number (10093356).

Almost surely, 2115342631 is an apocalyptic number.

115342631 is a deficient number, since it is larger than the sum of its proper divisors (5777641).

115342631 is an equidigital number, since it uses as much as digits as its factorization.

115342631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030 (or 1007 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 115342631 is about 10739.7686660375. The cubic root of 115342631 is about 486.7768894543.

The spelling of 115342631 in words is "one hundred fifteen million, three hundred forty-two thousand, six hundred thirty-one".

Divisors: 1 23 337 529 647 7751 14881 178273 218039 342263 5014897 115342631