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626680052 = 22290953857
BaseRepresentation
bin100101010110100…
…110000011110100
31121200012122102022
4211112212003310
52240412230202
6142103532312
721346456355
oct4526460364
91550178368
10626680052
112a1820aa9
12155a5a098
139caaa6cb
145d32dd2c
153a03cea2
hex255a60f4

626680052 has 12 divisors (see below), whose sum is σ = 1097087460. Its totient is φ = 313226496.

The previous prime is 626680051. The next prime is 626680073. The reversal of 626680052 is 250086626.

It can be written as a sum of positive squares in 2 ways, for example, as 360468196 + 266211856 = 18986^2 + 16316^2 .

It is a junction number, because it is equal to n+sod(n) for n = 626679994 and 626680021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626680051) 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, 15293 + ... + 38564.

It is an arithmetic number, because the mean of its divisors is an integer number (91423955).

Almost surely, 2626680052 is an apocalyptic number.

It is an amenable number.

626680052 is a deficient number, since it is larger than the sum of its proper divisors (470407408).

626680052 is a wasteful number, since it uses less digits than its factorization.

626680052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56770 (or 56768 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 626680052 is about 25033.5784897006. The cubic root of 626680052 is about 855.7533808569.

The spelling of 626680052 in words is "six hundred twenty-six million, six hundred eighty thousand, fifty-two".

Divisors: 1 2 4 2909 5818 11636 53857 107714 215428 156670013 313340026 626680052