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12748932 = 2232750591
BaseRepresentation
bin110000101000…
…100010000100
3212222201020200
4300220202010
511230431212
61133130500
7213235620
oct60504204
925881220
1012748932
117218509
124329a30
132844b61
14199c180
1511bc6dc
hexc28884

12748932 has 36 divisors (see below), whose sum is σ = 36830976. Its totient is φ = 3642480.

The previous prime is 12748919. The next prime is 12748933. The reversal of 12748932 is 23984721.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12748933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25044 + ... + 25547.

Almost surely, 212748932 is an apocalyptic number.

12748932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12748932 is an abundant number, since it is smaller than the sum of its proper divisors (24082044).

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

12748932 is a wasteful number, since it uses less digits than its factorization.

12748932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50608 (or 50603 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 12748932 is about 3570.5646612266. The cubic root of 12748932 is about 233.6099132983.

The spelling of 12748932 in words is "twelve million, seven hundred forty-eight thousand, nine hundred thirty-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 50591 101182 151773 202364 303546 354137 455319 607092 708274 910638 1062411 1416548 1821276 2124822 3187233 4249644 6374466 12748932