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137164887 = 338397631
BaseRepresentation
bin10000010110011…
…11100001010111
3100120002200212000
420023033201113
5240103234022
621335530343
73253611426
oct1013174127
9316080760
10137164887
1170476012
1239b299b3
1322556a72
14143072bd
15c0966ac
hex82cf857

137164887 has 32 divisors (see below), whose sum is σ = 208104960. Its totient is φ = 89268480.

The previous prime is 137164873. The next prime is 137164889. The reversal of 137164887 is 788461731.

137164887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 137164887 - 28 = 137164631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137164889) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217062 + ... + 217692.

It is an arithmetic number, because the mean of its divisors is an integer number (6503280).

Almost surely, 2137164887 is an apocalyptic number.

137164887 is a deficient number, since it is larger than the sum of its proper divisors (70940073).

137164887 is an equidigital number, since it uses as much as digits as its factorization.

137164887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820 (or 814 counting only the distinct ones).

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

The square root of 137164887 is about 11711.7414162028. The cubic root of 137164887 is about 515.7204069406.

The spelling of 137164887 in words is "one hundred thirty-seven million, one hundred sixty-four thousand, eight hundred eighty-seven".

Divisors: 1 3 9 27 83 97 249 291 631 747 873 1893 2241 2619 5679 8051 17037 24153 52373 61207 72459 157119 183621 217377 471357 550863 1414071 1652589 5080181 15240543 45721629 137164887