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12660968 = 231582621
BaseRepresentation
bin110000010011…
…000011101000
3212211020120202
4300103003220
511220122333
61131211332
7212421305
oct60230350
925736522
1012660968
117168411
1242a6b48
132813ac8
1419780ac
1511a15e8
hexc130e8

12660968 has 8 divisors (see below), whose sum is σ = 23739330. Its totient is φ = 6330480.

The previous prime is 12660961. The next prime is 12660979. The reversal of 12660968 is 86906621.

It can be written as a sum of positive squares in only one way, i.e., 11847364 + 813604 = 3442^2 + 902^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×126609682 = 320600221394048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12660961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 791303 + ... + 791318.

Almost surely, 212660968 is an apocalyptic number.

It is an amenable number.

12660968 is a deficient number, since it is larger than the sum of its proper divisors (11078362).

12660968 is a wasteful number, since it uses less digits than its factorization.

12660968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582627 (or 1582623 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 12660968 is about 3558.2254003927. The cubic root of 12660968 is about 233.0713922215.

The spelling of 12660968 in words is "twelve million, six hundred sixty thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 1582621 3165242 6330484 12660968