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137895473 = 1031338791
BaseRepresentation
bin10000011100000…
…01111000110001
3100121110211000202
420032001320301
5240300123343
621403324545
73263043422
oct1016017061
9317424022
10137895473
1170924a01
123a220755
1322751471
1414457649
15c18cdb8
hex8381e31

137895473 has 4 divisors (see below), whose sum is σ = 139234368. Its totient is φ = 136556580.

The previous prime is 137895431. The next prime is 137895481. The reversal of 137895473 is 374598731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 374598731 = 1328815287.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-137895473 is a prime.

It is a super-2 number, since 2×1378954732 = 38030322947787458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137895413) 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 3 ways as a sum of consecutive naturals, for example, 669293 + ... + 669498.

It is an arithmetic number, because the mean of its divisors is an integer number (34808592).

Almost surely, 2137895473 is an apocalyptic number.

It is an amenable number.

137895473 is a deficient number, since it is larger than the sum of its proper divisors (1338895).

137895473 is a wasteful number, since it uses less digits than its factorization.

137895473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338894.

The product of its digits is 635040, while the sum is 47.

The square root of 137895473 is about 11742.8903171238. The cubic root of 137895473 is about 516.6344191227.

The spelling of 137895473 in words is "one hundred thirty-seven million, eight hundred ninety-five thousand, four hundred seventy-three".

Divisors: 1 103 1338791 137895473