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132452720 = 2451655659
BaseRepresentation
bin1111110010100…
…01000101110000
3100020020021222022
413321101011300
5232401441340
621050531012
73165554351
oct771210560
9306207868
10132452720
1168847764
1238436a68
1321596cba
141383bd28
15b9653b5
hex7e51170

132452720 has 20 divisors (see below), whose sum is σ = 307952760. Its totient is φ = 52981056.

The previous prime is 132452669. The next prime is 132452783. The reversal of 132452720 is 27254231.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 132452720.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 827750 + ... + 827909.

It is an arithmetic number, because the mean of its divisors is an integer number (15397638).

Almost surely, 2132452720 is an apocalyptic number.

132452720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132452720 is an abundant number, since it is smaller than the sum of its proper divisors (175500040).

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

132452720 is a wasteful number, since it uses less digits than its factorization.

132452720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655672 (or 1655666 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 132452720 is about 11508.8105380183. The cubic root of 132452720 is about 509.7457658912.

The spelling of 132452720 in words is "one hundred thirty-two million, four hundred fifty-two thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1655659 3311318 6622636 8278295 13245272 16556590 26490544 33113180 66226360 132452720