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137985113 = 779249521
BaseRepresentation
bin10000011100101…
…11110001011001
3100121122100222202
420032113301121
5240311010423
621405255545
73263565650
oct1016276131
9317570882
10137985113
1170986292
123a2645b5
13227831c6
141447c197
15c1a9728
hex8397c59

137985113 has 8 divisors (see below), whose sum is σ = 159694080. Its totient is φ = 116775360.

The previous prime is 137985109. The next prime is 137985121. The reversal of 137985113 is 311589731.

137985113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 137985113 - 22 = 137985109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137985013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124208 + ... + 125313.

It is an arithmetic number, because the mean of its divisors is an integer number (19961760).

Almost surely, 2137985113 is an apocalyptic number.

It is an amenable number.

137985113 is a deficient number, since it is larger than the sum of its proper divisors (21708967).

137985113 is an equidigital number, since it uses as much as digits as its factorization.

137985113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249607.

The product of its digits is 22680, while the sum is 38.

The square root of 137985113 is about 11746.7064745826. The cubic root of 137985113 is about 516.7463422506.

The spelling of 137985113 in words is "one hundred thirty-seven million, nine hundred eighty-five thousand, one hundred thirteen".

Divisors: 1 7 79 553 249521 1746647 19712159 137985113