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115868636 = 22132228243
BaseRepresentation
bin1101110100000…
…00001111011100
322002000201212222
412322000033130
5214130244021
615255244512
72604603302
oct672001734
9262021788
10115868636
115a44a904
1232979738
131b00b630
1411562272
15a28b6ab
hex6e803dc

115868636 has 12 divisors (see below), whose sum is σ = 218367912. Its totient is φ = 53477808.

The previous prime is 115868611. The next prime is 115868639. The reversal of 115868636 is 636868511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115868639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1114070 + ... + 1114173.

It is an arithmetic number, because the mean of its divisors is an integer number (18197326).

Almost surely, 2115868636 is an apocalyptic number.

It is an amenable number.

115868636 is a deficient number, since it is larger than the sum of its proper divisors (102499276).

115868636 is a wasteful number, since it uses less digits than its factorization.

115868636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228260 (or 2228258 counting only the distinct ones).

The product of its digits is 207360, while the sum is 44.

The square root of 115868636 is about 10764.2294661532. The cubic root of 115868636 is about 487.5157282675.

The spelling of 115868636 in words is "one hundred fifteen million, eight hundred sixty-eight thousand, six hundred thirty-six".

Divisors: 1 2 4 13 26 52 2228243 4456486 8912972 28967159 57934318 115868636