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132321231 = 32723531723
BaseRepresentation
bin1111110001100…
…00111111001111
3100012222121121100
413320300333033
5232333234411
621044034143
73164466120
oct770607717
9305877540
10132321231
1168767999
1238392953
132154c1b3
1413806047
15b93b456
hex7e30fcf

132321231 has 48 divisors (see below), whose sum is σ = 232367616. Its totient is φ = 70918848.

The previous prime is 132321193. The next prime is 132321253. The reversal of 132321231 is 132123231.

It is not a de Polignac number, because 132321231 - 27 = 132321103 is a prime.

It is a super-2 number, since 2×1323212312 = 35017816346710722, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132321131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75936 + ... + 77658.

It is an arithmetic number, because the mean of its divisors is an integer number (4840992).

Almost surely, 2132321231 is an apocalyptic number.

132321231 is a deficient number, since it is larger than the sum of its proper divisors (100046385).

132321231 is a wasteful number, since it uses less digits than its factorization.

132321231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812 (or 1809 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 132321231 is about 11503.0965830945. The cubic root of 132321231 is about 509.5770310836.

Adding to 132321231 its reverse (132123231), we get a palindrome (264444462).

The spelling of 132321231 in words is "one hundred thirty-two million, three hundred twenty-one thousand, two hundred thirty-one".

Divisors: 1 3 7 9 21 23 53 63 69 159 161 207 371 477 483 1113 1219 1449 1723 3339 3657 5169 8533 10971 12061 15507 25599 36183 39629 76797 91319 108549 118887 273957 277403 356661 639233 821871 832209 1917699 2100337 2496627 5753097 6301011 14702359 18903033 44107077 132321231