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137357227 = 724181421
BaseRepresentation
bin10000010111111…
…10011110101011
3100120110110200201
420023332132223
5240130412402
621344013031
73255342250
oct1013763653
9316413621
10137357227
1170597577
123a001177
13225c3487
1414357427
15c0d3687
hex82fe7ab

137357227 has 8 divisors (see below), whose sum is σ = 157632992. Its totient is φ = 117244800.

The previous prime is 137357203. The next prime is 137357237. The reversal of 137357227 is 722753731.

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-137357227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137357237) 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 7 ways as a sum of consecutive naturals, for example, 39024 + ... + 42397.

It is an arithmetic number, because the mean of its divisors is an integer number (19704124).

Almost surely, 2137357227 is an apocalyptic number.

137357227 is a deficient number, since it is larger than the sum of its proper divisors (20275765).

137357227 is an equidigital number, since it uses as much as digits as its factorization.

137357227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81669.

The product of its digits is 61740, while the sum is 37.

The square root of 137357227 is about 11719.9499572310. The cubic root of 137357227 is about 515.9613513408.

The spelling of 137357227 in words is "one hundred thirty-seven million, three hundred fifty-seven thousand, two hundred twenty-seven".

Divisors: 1 7 241 1687 81421 569947 19622461 137357227