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12520676 = 2272127503
BaseRepresentation
bin101111110000…
…110011100100
3212120010010202
4233300303210
511201130201
61124210032
7211265300
oct57606344
925503122
1012520676
117081a73
124239918
132794cac
14193cd00
151174c6b
hexbf0ce4

12520676 has 36 divisors (see below), whose sum is σ = 25740288. Its totient is φ = 5313168.

The previous prime is 12520657. The next prime is 12520691. The reversal of 12520676 is 67602521.

12520676 = T30 + T31 + ... + T421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24641 + ... + 25143.

It is an arithmetic number, because the mean of its divisors is an integer number (715008).

Almost surely, 212520676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12520676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12870144).

12520676 is an abundant number, since it is smaller than the sum of its proper divisors (13219612).

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

12520676 is a wasteful number, since it uses less digits than its factorization.

12520676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 639 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 12520676 is about 3538.4567257492. The cubic root of 12520676 is about 232.2073305147.

The spelling of 12520676 in words is "twelve million, five hundred twenty thousand, six hundred seventy-six".

Divisors: 1 2 4 7 14 28 49 98 127 196 254 503 508 889 1006 1778 2012 3521 3556 6223 7042 12446 14084 24647 24892 49294 63881 98588 127762 255524 447167 894334 1788668 3130169 6260338 12520676