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132890646 = 2372452009
BaseRepresentation
bin1111110101111…
…00000000010110
3100021001112200210
413322330000112
5233010000041
621104150250
73202360200
oct772740026
9307045623
10132890646
1169016789
1238608386
13216bb425
1413913770
15ba00016
hex7ebc016

132890646 has 24 divisors (see below), whose sum is σ = 309174840. Its totient is φ = 37968672.

The previous prime is 132890621. The next prime is 132890647. The reversal of 132890646 is 646098231.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132890647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225711 + ... + 226298.

It is an arithmetic number, because the mean of its divisors is an integer number (12882285).

Almost surely, 2132890646 is an apocalyptic number.

132890646 is an abundant number, since it is smaller than the sum of its proper divisors (176284194).

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

132890646 is a wasteful number, since it uses less digits than its factorization.

132890646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452028 (or 452021 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 132890646 is about 11527.8205225446. The cubic root of 132890646 is about 510.3069355769.

The spelling of 132890646 in words is "one hundred thirty-two million, eight hundred ninety thousand, six hundred forty-six".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 452009 904018 1356027 2712054 3164063 6328126 9492189 18984378 22148441 44296882 66445323 132890646