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52220868 = 2237288811
BaseRepresentation
bin1100011100110…
…1001111000100
310122021002120020
43013031033010
5101332031433
65103135140
71202604300
oct307151704
9118232506
1052220868
1127528347
12155a44b0
13aa8522b
146d14d00
1548b7cb3
hex31cd3c4

52220868 has 36 divisors (see below), whose sum is σ = 141743952. Its totient is φ = 14920080.

The previous prime is 52220843. The next prime is 52220881. The reversal of 52220868 is 86802225.

52220868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 43818 + ... + 44993.

It is an arithmetic number, because the mean of its divisors is an integer number (3937332).

Almost surely, 252220868 is an apocalyptic number.

It is an amenable number.

52220868 is an abundant number, since it is smaller than the sum of its proper divisors (89523084).

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

52220868 is a wasteful number, since it uses less digits than its factorization.

52220868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88832 (or 88823 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 52220868 is about 7226.4007638658. The cubic root of 52220868 is about 373.7788258286.

The spelling of 52220868 in words is "fifty-two million, two hundred twenty thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 588 88811 177622 266433 355244 532866 621677 1065732 1243354 1865031 2486708 3730062 4351739 7460124 8703478 13055217 17406956 26110434 52220868