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12747412 = 22101139227
BaseRepresentation
bin110000101000…
…001010010100
3212222122011101
4300220022110
511230404122
61133115444
7213231316
oct60501224
925878141
1012747412
117217357
124328b84
132844262
14199b7b6
1511bc027
hexc28294

12747412 has 24 divisors (see below), whose sum is σ = 22790880. Its totient is φ = 6237600.

The previous prime is 12747409. The next prime is 12747419. The reversal of 12747412 is 21474721.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12747419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56043 + ... + 56269.

It is an arithmetic number, because the mean of its divisors is an integer number (949620).

Almost surely, 212747412 is an apocalyptic number.

It is an amenable number.

12747412 is a deficient number, since it is larger than the sum of its proper divisors (10043468).

12747412 is a wasteful number, since it uses less digits than its factorization.

12747412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 469 counting only the distinct ones).

The product of its digits is 3136, while the sum is 28.

The square root of 12747412 is about 3570.3518033942. The cubic root of 12747412 is about 233.6006288295.

The spelling of 12747412 in words is "twelve million, seven hundred forty-seven thousand, four hundred twelve".

Divisors: 1 2 4 101 139 202 227 278 404 454 556 908 14039 22927 28078 31553 45854 56156 63106 91708 126212 3186853 6373706 12747412