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137440775 = 5219289349
BaseRepresentation
bin10000011000100…
…10111000000111
3100120121201022002
420030102320013
5240141101100
621345455515
73256140653
oct1014227007
9316551262
10137440775
117064431a
123a04159b
1322622504
1414379a63
15c0ed2d5
hex8312e07

137440775 has 12 divisors (see below), whose sum is σ = 179397000. Its totient is φ = 104165280.

The previous prime is 137440757. The next prime is 137440777. The reversal of 137440775 is 577044731.

It is not a de Polignac number, because 137440775 - 26 = 137440711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137440777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144200 + ... + 145149.

It is an arithmetic number, because the mean of its divisors is an integer number (14949750).

Almost surely, 2137440775 is an apocalyptic number.

137440775 is a deficient number, since it is larger than the sum of its proper divisors (41956225).

137440775 is a wasteful number, since it uses less digits than its factorization.

137440775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289378 (or 289373 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 137440775 is about 11723.5137650791. The cubic root of 137440775 is about 516.0659418861.

The spelling of 137440775 in words is "one hundred thirty-seven million, four hundred forty thousand, seven hundred seventy-five".

Divisors: 1 5 19 25 95 475 289349 1446745 5497631 7233725 27488155 137440775