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12132445332 = 2237971489009
BaseRepresentation
bin10110100110010011…
…00110110010010100
31011022112100002012010
423103021212302110
5144321401222312
65323520224220
7606440040510
oct132311466224
934275302163
1012132445332
1151664a3827
12242716b070
1311b4728347
14831457140
154b01d393c
hex2d3266c94

12132445332 has 48 divisors (see below), whose sum is σ = 32686747520. Its totient is φ = 3430674432.

The previous prime is 12132445319. The next prime is 12132445357. The reversal of 12132445332 is 23354423121.

It is a self number, because there is not a number n which added to its sum of digits gives 12132445332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736357 + ... + 752652.

Almost surely, 212132445332 is an apocalyptic number.

12132445332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12132445332 is an abundant number, since it is smaller than the sum of its proper divisors (20554302188).

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

12132445332 is a wasteful number, since it uses less digits than its factorization.

12132445332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489120 (or 1489118 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

Adding to 12132445332 its reverse (23354423121), we get a palindrome (35486868453).

The spelling of 12132445332 in words is "twelve billion, one hundred thirty-two million, four hundred forty-five thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 97 194 291 388 582 679 1164 1358 2037 2716 4074 8148 1489009 2978018 4467027 5956036 8934054 10423063 17868108 20846126 31269189 41692252 62538378 125076756 144433873 288867746 433301619 577735492 866603238 1011037111 1733206476 2022074222 3033111333 4044148444 6066222666 12132445332