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137674881 = 32128311923
BaseRepresentation
bin10000011010011…
…00000010000001
3100121001121102200
420031030002001
5240221044011
621354503413
73261134331
oct1015140201
9317047380
10137674881
11707941a3
123a134b69
13226a4c36
14143db0c1
15c147856
hex834c081

137674881 has 12 divisors (see below), whose sum is σ = 199035408. Its totient is φ = 91704024.

The previous prime is 137674879. The next prime is 137674897. The reversal of 137674881 is 188476731.

It is not a de Polignac number, because 137674881 - 21 = 137674879 is a prime.

It is a super-2 number, since 2×1376748812 = 37908745716728322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (137674871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5586 + ... + 17508.

It is an arithmetic number, because the mean of its divisors is an integer number (16586284).

Almost surely, 2137674881 is an apocalyptic number.

It is an amenable number.

137674881 is a deficient number, since it is larger than the sum of its proper divisors (61360527).

137674881 is a wasteful number, since it uses less digits than its factorization.

137674881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13212 (or 13209 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 137674881 is about 11733.4939809078. The cubic root of 137674881 is about 516.3587846350.

The spelling of 137674881 in words is "one hundred thirty-seven million, six hundred seventy-four thousand, eight hundred eighty-one".

Divisors: 1 3 9 1283 3849 11547 11923 35769 107307 15297209 45891627 137674881