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12712748 = 2219473559
BaseRepresentation
bin110000011111…
…101100101100
3212220212121112
4300133230230
511223301443
61132251152
7213025256
oct60375454
925825545
1012712748
1171a3304
124310ab8
132831549
14198ccd6
1511b1b18
hexc1fb2c

12712748 has 24 divisors (see below), whose sum is σ = 23923200. Its totient is φ = 5892048.

The previous prime is 12712741. The next prime is 12712751. The reversal of 12712748 is 84721721.

It is a happy number.

It is a super-2 number, since 2×127127482 = 323227923423008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12712741) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1793 + ... + 5351.

It is an arithmetic number, because the mean of its divisors is an integer number (996800).

Almost surely, 212712748 is an apocalyptic number.

It is an amenable number.

12712748 is a deficient number, since it is larger than the sum of its proper divisors (11210452).

12712748 is a wasteful number, since it uses less digits than its factorization.

12712748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629 (or 3627 counting only the distinct ones).

The product of its digits is 6272, while the sum is 32.

The square root of 12712748 is about 3565.4940751599. The cubic root of 12712748 is about 233.3886934403.

The spelling of 12712748 in words is "twelve million, seven hundred twelve thousand, seven hundred forty-eight".

Divisors: 1 2 4 19 38 47 76 94 188 893 1786 3559 3572 7118 14236 67621 135242 167273 270484 334546 669092 3178187 6356374 12712748