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53233880 = 2357190121
BaseRepresentation
bin1100101100010…
…0100011011000
310201011120011012
43023010203120
5102111441010
65140553052
71214323550
oct313044330
9121146135
1053233880
112805a447
12159b2788
13b04b34b
1470da160
154a18005
hex32c48d8

53233880 has 32 divisors (see below), whose sum is σ = 136887840. Its totient is φ = 18251520.

The previous prime is 53233853. The next prime is 53233897. The reversal of 53233880 is 8833235.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94781 + ... + 95340.

It is an arithmetic number, because the mean of its divisors is an integer number (4277745).

Almost surely, 253233880 is an apocalyptic number.

It is an amenable number.

53233880 is an abundant number, since it is smaller than the sum of its proper divisors (83653960).

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

53233880 is a wasteful number, since it uses less digits than its factorization.

53233880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190139 (or 190135 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 53233880 is about 7296.1551518591. The cubic root of 53233880 is about 376.1802930432.

The spelling of 53233880 in words is "fifty-three million, two hundred thirty-three thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 190121 380242 760484 950605 1330847 1520968 1901210 2661694 3802420 5323388 6654235 7604840 10646776 13308470 26616940 53233880