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132258440 = 2353306461
BaseRepresentation
bin1111110001000…
…01101010001000
3100012212102110202
413320201222020
5232324232230
621042431332
73164115056
oct770415210
9305772422
10132258440
11687247a6
1238362548
1321529742
14137cb1d6
15b927a45
hex7e21a88

132258440 has 16 divisors (see below), whose sum is σ = 297581580. Its totient is φ = 52903360.

The previous prime is 132258439. The next prime is 132258443. The reversal of 132258440 is 44852231.

It is a happy number.

132258440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 128006596 + 4251844 = 11314^2 + 2062^2 .

It is not an unprimeable number, because it can be changed into a prime (132258443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1653191 + ... + 1653270.

Almost surely, 2132258440 is an apocalyptic number.

132258440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132258440 is an abundant number, since it is smaller than the sum of its proper divisors (165323140).

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

132258440 is a wasteful number, since it uses less digits than its factorization.

132258440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3306472 (or 3306468 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 132258440 is about 11500.3669506673. The cubic root of 132258440 is about 509.4964143560.

The spelling of 132258440 in words is "one hundred thirty-two million, two hundred fifty-eight thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 3306461 6612922 13225844 16532305 26451688 33064610 66129220 132258440