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115525013 = 1747191757
BaseRepresentation
bin1101110001011…
…00010110010101
322001101021112012
412320230112111
5214033300023
615244034005
72601642422
oct670542625
9261337465
10115525013
115a23571a
1232832905
131ac1b0c6
14114b2d49
15a21e978
hex6e2c595

115525013 has 16 divisors (see below), whose sum is σ = 125743104. Its totient is φ = 105719040.

The previous prime is 115524991. The next prime is 115525019. The reversal of 115525013 is 310525511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 115525013 - 26 = 115524949 is a prime.

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 115525013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115525019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152231 + ... + 152987.

It is an arithmetic number, because the mean of its divisors is an integer number (7858944).

Almost surely, 2115525013 is an apocalyptic number.

It is an amenable number.

115525013 is a deficient number, since it is larger than the sum of its proper divisors (10218091).

115525013 is a wasteful number, since it uses less digits than its factorization.

115525013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 115525013 is about 10748.2562771828. The cubic root of 115525013 is about 487.0333213557.

The spelling of 115525013 in words is "one hundred fifteen million, five hundred twenty-five thousand, thirteen".

Divisors: 1 17 47 191 757 799 3247 8977 12869 35579 144587 152609 604843 2457979 6795589 115525013