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132381237 = 3139523607
BaseRepresentation
bin1111110001111…
…11101000110101
3100020002122220210
413320333220311
5232342144422
621045220033
73165136062
oct770775065
9306078823
10132381237
11687a8a8a
1238401619
13215705c1
141381dc69
15b94e10c
hex7e3fa35

132381237 has 16 divisors (see below), whose sum is σ = 178411520. Its totient is φ = 87307632.

The previous prime is 132381233. The next prime is 132381239. The reversal of 132381237 is 732183231.

It is not a de Polignac number, because 132381237 - 22 = 132381233 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132381233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217788 + ... + 218394.

It is an arithmetic number, because the mean of its divisors is an integer number (11150720).

Almost surely, 2132381237 is an apocalyptic number.

It is an amenable number.

132381237 is a deficient number, since it is larger than the sum of its proper divisors (46030283).

132381237 is a wasteful number, since it uses less digits than its factorization.

132381237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272.

The product of its digits is 6048, while the sum is 30.

The square root of 132381237 is about 11505.7045416611. The cubic root of 132381237 is about 509.6540483495.

The spelling of 132381237 in words is "one hundred thirty-two million, three hundred eighty-one thousand, two hundred thirty-seven".

Divisors: 1 3 139 417 523 607 1569 1821 72697 84373 218091 253119 317461 952383 44127079 132381237