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115113913 = 1950911903
BaseRepresentation
bin1101101110001…
…11111110111001
322000121101121021
412313013332321
5213432121123
615231142441
72565311035
oct667077671
9260541537
10115113913
1159a84872
1232674a21
131ab05c55
14114071c5
15a18cc5d
hex6dc7fb9

115113913 has 8 divisors (see below), whose sum is σ = 121420800. Its totient is φ = 108831888.

The previous prime is 115113863. The next prime is 115113923. The reversal of 115113913 is 319311511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-115113913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115113923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3720 + ... + 15622.

It is an arithmetic number, because the mean of its divisors is an integer number (15177600).

Almost surely, 2115113913 is an apocalyptic number.

It is an amenable number.

115113913 is a deficient number, since it is larger than the sum of its proper divisors (6306887).

115113913 is a wasteful number, since it uses less digits than its factorization.

115113913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12431.

The product of its digits is 405, while the sum is 25.

The square root of 115113913 is about 10729.1152011711. The cubic root of 115113913 is about 486.4549260804.

The spelling of 115113913 in words is "one hundred fifteen million, one hundred thirteen thousand, nine hundred thirteen".

Divisors: 1 19 509 9671 11903 226157 6058627 115113913