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132215920 = 2455331183
BaseRepresentation
bin1111110000101…
…11010001110000
3100012210021010221
413320113101300
5232321402140
621041502424
73163550104
oct770272160
9305707127
10132215920
11686a5861
1238341a14
1321513295
14137b9904
15b91a14a
hex7e17470

132215920 has 40 divisors (see below), whose sum is σ = 313212096. Its totient is φ = 51886848.

The previous prime is 132215887. The next prime is 132215933. The reversal of 132215920 is 29512231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11352 + ... + 19831.

Almost surely, 2132215920 is an apocalyptic number.

132215920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132215920 is an abundant number, since it is smaller than the sum of its proper divisors (180996176).

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

132215920 is a wasteful number, since it uses less digits than its factorization.

132215920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31249 (or 31243 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 132215920 is about 11498.5181653985. The cubic root of 132215920 is about 509.4418088691.

The spelling of 132215920 in words is "one hundred thirty-two million, two hundred fifteen thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 53 80 106 212 265 424 530 848 1060 2120 4240 31183 62366 124732 155915 249464 311830 498928 623660 1247320 1652699 2494640 3305398 6610796 8263495 13221592 16526990 26443184 33053980 66107960 132215920