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137098717 = 723498017
BaseRepresentation
bin10000010101111…
…11010111011101
3100112222100002021
420022333113131
5240044124332
621334300141
73253214500
oct1012772735
9315870067
10137098717
1170430328
1239ab7651
1322532902
14142cb137
15c081c97
hex82bf5dd

137098717 has 12 divisors (see below), whose sum is σ = 159959100. Its totient is φ = 117161856.

The previous prime is 137098681. The next prime is 137098729. The reversal of 137098717 is 717890731.

It can be written as a sum of positive squares in 2 ways, for example, as 90231001 + 46867716 = 9499^2 + 6846^2 .

It is not a de Polignac number, because 137098717 - 27 = 137098589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137098517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13093 + ... + 21109.

It is an arithmetic number, because the mean of its divisors is an integer number (13329925).

Almost surely, 2137098717 is an apocalyptic number.

It is an amenable number.

137098717 is a deficient number, since it is larger than the sum of its proper divisors (22860383).

137098717 is an equidigital number, since it uses as much as digits as its factorization.

137098717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8380 (or 8373 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 43.

The square root of 137098717 is about 11708.9161325889. The cubic root of 137098717 is about 515.6374636816.

The spelling of 137098717 in words is "one hundred thirty-seven million, ninety-eight thousand, seven hundred seventeen".

Divisors: 1 7 49 349 2443 8017 17101 56119 392833 2797933 19585531 137098717