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12552740 = 225627637
BaseRepresentation
bin101111111000…
…101000100100
3212121202010022
4233320220210
511203141430
61125014312
7211460624
oct57705044
925552108
1012552740
1170a4072
124254398
1327a6775
14194a884
15117e4e5
hexbf8a24

12552740 has 12 divisors (see below), whose sum is σ = 26360796. Its totient is φ = 5021088.

The previous prime is 12552739. The next prime is 12552751. The reversal of 12552740 is 4725521.

12552740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7606564 + 4946176 = 2758^2 + 2224^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313799 + ... + 313838.

It is an arithmetic number, because the mean of its divisors is an integer number (2196733).

Almost surely, 212552740 is an apocalyptic number.

12552740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12552740 is an abundant number, since it is smaller than the sum of its proper divisors (13808056).

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

12552740 is a wasteful number, since it uses less digits than its factorization.

12552740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627646 (or 627644 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 12552740 is about 3542.9846175224. The cubic root of 12552740 is about 232.4053802363.

The spelling of 12552740 in words is "twelve million, five hundred fifty-two thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 627637 1255274 2510548 3138185 6276370 12552740