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52556878 = 21123310253
BaseRepresentation
bin1100100001111…
…1010001001110
310122220011111001
43020133101032
5101423310003
65114250514
71205504023
oct310372116
9118804431
1052556878
1127737840
1215726a3a
13ab7215a
146da154a
15493261d
hex321f44e

52556878 has 16 divisors (see below), whose sum is σ = 86379696. Its totient is φ = 23784640.

The previous prime is 52556851. The next prime is 52556887. The reversal of 52556878 is 87865525.

52556878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

52556878 is a nontrivial binomial coefficient, being equal to C(10253, 2).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1 + ... + 10252.

It is an arithmetic number, because the mean of its divisors is an integer number (5398731).

Almost surely, 252556878 is an apocalyptic number.

52556878 is the 10252-nd triangular number.

52556878 is the 3418-th centered nonagonal number.

52556878 is a deficient number, since it is larger than the sum of its proper divisors (33822818).

52556878 is a wasteful number, since it uses less digits than its factorization.

52556878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10499.

The product of its digits is 672000, while the sum is 46.

The square root of 52556878 is about 7249.6122654939. The cubic root of 52556878 is about 374.5787934409.

The spelling of 52556878 in words is "fifty-two million, five hundred fifty-six thousand, eight hundred seventy-eight".

Divisors: 1 2 11 22 233 466 2563 5126 10253 20506 112783 225566 2388949 4777898 26278439 52556878