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12676660 = 225633833
BaseRepresentation
bin110000010110…
…111000110100
3212212001002221
4300112320310
511221123120
61131412124
7212515123
oct60267064
925761087
1012676660
117179187
1242b4044
13281aca9
14197daba
1511a60aa
hexc16e34

12676660 has 12 divisors (see below), whose sum is σ = 26621028. Its totient is φ = 5070656.

The previous prime is 12676633. The next prime is 12676663. The reversal of 12676660 is 6667621.

It can be written as a sum of positive squares in 2 ways, for example, as 2062096 + 10614564 = 1436^2 + 3258^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12676663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316897 + ... + 316936.

It is an arithmetic number, because the mean of its divisors is an integer number (2218419).

Almost surely, 212676660 is an apocalyptic number.

12676660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12676660 is an abundant number, since it is smaller than the sum of its proper divisors (13944368).

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

12676660 is a wasteful number, since it uses less digits than its factorization.

12676660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633842 (or 633840 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 12676660 is about 3560.4297493421. The cubic root of 12676660 is about 233.1676420067.

The spelling of 12676660 in words is "twelve million, six hundred seventy-six thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 633833 1267666 2535332 3169165 6338330 12676660