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12712492 = 2213244471
BaseRepresentation
bin110000011111…
…101000101100
3212220212021001
4300133220230
511223244432
61132250044
7213024442
oct60375054
925825231
1012712492
1171a30a1
124310924
1328313b0
14198cb92
1511b19e7
hexc1fa2c

12712492 has 12 divisors (see below), whose sum is σ = 23958256. Its totient is φ = 5867280.

The previous prime is 12712489. The next prime is 12712499. The reversal of 12712492 is 29421721.

12712492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a self number, because there is not a number n which added to its sum of digits gives 12712492.

It is not an unprimeable number, because it can be changed into a prime (12712499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122184 + ... + 122287.

Almost surely, 212712492 is an apocalyptic number.

It is an amenable number.

12712492 is a deficient number, since it is larger than the sum of its proper divisors (11245764).

12712492 is a wasteful number, since it uses less digits than its factorization.

12712492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244488 (or 244486 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 12712492 is about 3565.4581753261. The cubic root of 12712492 is about 233.3871268263.

The spelling of 12712492 in words is "twelve million, seven hundred twelve thousand, four hundred ninety-two".

Divisors: 1 2 4 13 26 52 244471 488942 977884 3178123 6356246 12712492