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12761772 = 2239471123
BaseRepresentation
bin110000101011…
…101010101100
3220000100212020
4300223222230
511231334042
61133310140
7213321222
oct60535254
926010766
1012761772
117227121
124335350
13284a95a
1419a2b12
1511c13ec
hexc2baac

12761772 has 24 divisors (see below), whose sum is σ = 29835456. Its totient is φ = 4245648.

The previous prime is 12761761. The next prime is 12761779. The reversal of 12761772 is 27716721.

It is a happy number.

12761772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12761779) 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, 10803 + ... + 11925.

It is an arithmetic number, because the mean of its divisors is an integer number (1243144).

Almost surely, 212761772 is an apocalyptic number.

12761772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12761772 is an abundant number, since it is smaller than the sum of its proper divisors (17073684).

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

12761772 is a wasteful number, since it uses less digits than its factorization.

12761772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077 (or 2075 counting only the distinct ones).

The product of its digits is 8232, while the sum is 33.

The square root of 12761772 is about 3572.3622436701. The cubic root of 12761772 is about 233.6883131950.

The spelling of 12761772 in words is "twelve million, seven hundred sixty-one thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 12 947 1123 1894 2246 2841 3369 3788 4492 5682 6738 11364 13476 1063481 2126962 3190443 4253924 6380886 12761772