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626408052 = 22352200671
BaseRepresentation
bin100101010101100…
…011101001110100
31121122200211022020
4211111203221310
52240330024202
6142054033140
721344244354
oct4525435164
91548624266
10626408052
112a1655706
121559487b0
139ca1396a
145d29cb64
1539ed75bc
hex25563a74

626408052 has 12 divisors (see below), whose sum is σ = 1461618816. Its totient is φ = 208802680.

The previous prime is 626408051. The next prime is 626408063. The reversal of 626408052 is 250804626.

626408052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×6264080522 = 784774095220869408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626408051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26100324 + ... + 26100347.

It is an arithmetic number, because the mean of its divisors is an integer number (121801568).

Almost surely, 2626408052 is an apocalyptic number.

It is an amenable number.

626408052 is an abundant number, since it is smaller than the sum of its proper divisors (835210764).

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

626408052 is a wasteful number, since it uses less digits than its factorization.

626408052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52200678 (or 52200676 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 626408052 is about 25028.1451969578. The cubic root of 626408052 is about 855.6295544573.

The spelling of 626408052 in words is "six hundred twenty-six million, four hundred eight thousand, fifty-two".

Divisors: 1 2 3 4 6 12 52200671 104401342 156602013 208802684 313204026 626408052