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132207831 = 3272349859
BaseRepresentation
bin1111110000101…
…01010011010111
3100012202212001100
413320111103113
5232321122311
621041401143
73163514400
oct770252327
9305685040
10132207831
116869a778
12383391b3
132150c6b2
14137b69a7
15b917a56
hex7e154d7

132207831 has 36 divisors (see below), whose sum is σ = 223041000. Its totient is φ = 75243168.

The previous prime is 132207797. The next prime is 132207847. The reversal of 132207831 is 138702231.

It is not a de Polignac number, because 132207831 - 26 = 132207767 is a prime.

It is a super-2 number, since 2×1322078312 = 34957821155449122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 132207795 and 132207804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132207931) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 153480 + ... + 154338.

Almost surely, 2132207831 is an apocalyptic number.

132207831 is a deficient number, since it is larger than the sum of its proper divisors (90833169).

132207831 is a wasteful number, since it uses less digits than its factorization.

132207831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228 (or 1218 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 132207831 is about 11498.1664190426. The cubic root of 132207831 is about 509.4314194021.

The spelling of 132207831 in words is "one hundred thirty-two million, two hundred seven thousand, eight hundred thirty-one".

Divisors: 1 3 7 9 21 49 63 147 349 441 859 1047 2443 2577 3141 6013 7329 7731 17101 18039 21987 42091 51303 54117 126273 153909 299791 378819 899373 2098537 2698119 6295611 14689759 18886833 44069277 132207831