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12553112 = 23111310973
BaseRepresentation
bin101111111000…
…101110011000
3212121202122002
4233320232120
511203144422
61125020132
7211461665
oct57705630
925552562
1012553112
1170a4380
124254648
1327a69a0
14194aa6c
15117e692
hexbf8b98

12553112 has 32 divisors (see below), whose sum is σ = 27654480. Its totient is φ = 5266560.

The previous prime is 12553111. The next prime is 12553117. The reversal of 12553112 is 21135521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12553111) 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, 4343 + ... + 6630.

Almost surely, 212553112 is an apocalyptic number.

It is an amenable number.

12553112 is an abundant number, since it is smaller than the sum of its proper divisors (15101368).

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

12553112 is a wasteful number, since it uses less digits than its factorization.

12553112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11003 (or 10999 counting only the distinct ones).

The product of its digits is 300, while the sum is 20.

The square root of 12553112 is about 3543.0371152445. The cubic root of 12553112 is about 232.4076759887.

Adding to 12553112 its reverse (21135521), we get a palindrome (33688633).

The spelling of 12553112 in words is "twelve million, five hundred fifty-three thousand, one hundred twelve".

Divisors: 1 2 4 8 11 13 22 26 44 52 88 104 143 286 572 1144 10973 21946 43892 87784 120703 142649 241406 285298 482812 570596 965624 1141192 1569139 3138278 6276556 12553112