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12520772 = 22111719881
BaseRepresentation
bin101111110000…
…110101000100
3212120010021022
4233300311010
511201131042
61124210312
7211265465
oct57606504
925503238
1012520772
117082050
124239998
132795054
14193cd6c
151174cd2
hexbf0d44

12520772 has 48 divisors (see below), whose sum is σ = 26671680. Its totient is φ = 5068800.

The previous prime is 12520757. The next prime is 12520777. The reversal of 12520772 is 27702521.

12520772 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 (12520777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13772 + ... + 14652.

It is an arithmetic number, because the mean of its divisors is an integer number (555660).

Almost surely, 212520772 is an apocalyptic number.

It is an amenable number.

12520772 is an abundant number, since it is smaller than the sum of its proper divisors (14150908).

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

12520772 is a wasteful number, since it uses less digits than its factorization.

12520772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 12520772 is about 3538.4702909591. The cubic root of 12520772 is about 232.2079239823.

The spelling of 12520772 in words is "twelve million, five hundred twenty thousand, seven hundred seventy-two".

Divisors: 1 2 4 11 17 19 22 34 38 44 68 76 187 209 323 374 418 646 748 836 881 1292 1762 3524 3553 7106 9691 14212 14977 16739 19382 29954 33478 38764 59908 66956 164747 184129 284563 329494 368258 569126 658988 736516 1138252 3130193 6260386 12520772