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52399130 = 2572106937
BaseRepresentation
bin1100011111100…
…0110000011010
310122121011002112
43013320300122
5101403233010
65111032322
71204246100
oct307706032
9118534075
1052399130
112763a273
121566b6a2
13ab18404
146d5dc70
154900a05
hex31f8c1a

52399130 has 24 divisors (see below), whose sum is σ = 109718388. Its totient is φ = 17965248.

The previous prime is 52399111. The next prime is 52399133. The reversal of 52399130 is 3199325.

52399130 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 51681721 + 717409 = 7189^2 + 847^2 .

It is not an unprimeable number, because it can be changed into a prime (52399133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52979 + ... + 53958.

Almost surely, 252399130 is an apocalyptic number.

52399130 is an abundant number, since it is smaller than the sum of its proper divisors (57319258).

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

52399130 is a wasteful number, since it uses less digits than its factorization.

52399130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106958 (or 106951 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 52399130 is about 7238.7243351298. The cubic root of 52399130 is about 374.2036552758.

The spelling of 52399130 in words is "fifty-two million, three hundred ninety-nine thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 106937 213874 534685 748559 1069370 1497118 3742795 5239913 7485590 10479826 26199565 52399130