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132972894 = 2333766553
BaseRepresentation
bin1111110110100…
…00000101011110
3100021012201112000
413323100011132
5233020113034
621110023130
73203152035
oct773200536
9307181460
10132972894
116907255a
1238647aa6
13217199b2
141393571c
15ba19599
hex7ed015e

132972894 has 32 divisors (see below), whose sum is σ = 303486240. Its totient is φ = 43125696.

The previous prime is 132972883. The next prime is 132972907. The reversal of 132972894 is 498279231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31279 + ... + 35274.

It is an arithmetic number, because the mean of its divisors is an integer number (9483945).

Almost surely, 2132972894 is an apocalyptic number.

132972894 is an abundant number, since it is smaller than the sum of its proper divisors (170513346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

132972894 is a wasteful number, since it uses less digits than its factorization.

132972894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66601 (or 66595 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 132972894 is about 11531.3873406455. The cubic root of 132972894 is about 510.4121927190.

The spelling of 132972894 in words is "one hundred thirty-two million, nine hundred seventy-two thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 9 18 27 37 54 74 111 222 333 666 999 1998 66553 133106 199659 399318 598977 1197954 1796931 2462461 3593862 4924922 7387383 14774766 22162149 44324298 66486447 132972894