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53231863 = 193775721
BaseRepresentation
bin1100101100010…
…0000011110111
310201011110101111
43023010003313
5102111404423
65140535451
71214314636
oct313040367
9121143344
1053231863
1128058983
12159b1587
13b04a459
1470d951d
154a1760d
hex32c40f7

53231863 has 8 divisors (see below), whose sum is σ = 57548720. Its totient is φ = 49066560.

The previous prime is 53231861. The next prime is 53231869. The reversal of 53231863 is 36813235.

53231863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53231863 - 21 = 53231861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53231861) 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 7 ways as a sum of consecutive naturals, for example, 37158 + ... + 38563.

It is an arithmetic number, because the mean of its divisors is an integer number (7193590).

Almost surely, 253231863 is an apocalyptic number.

53231863 is a deficient number, since it is larger than the sum of its proper divisors (4316857).

53231863 is a wasteful number, since it uses less digits than its factorization.

53231863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75777.

The product of its digits is 12960, while the sum is 31.

The square root of 53231863 is about 7296.0169270637. The cubic root of 53231863 is about 376.1755419008.

The spelling of 53231863 in words is "fifty-three million, two hundred thirty-one thousand, eight hundred sixty-three".

Divisors: 1 19 37 703 75721 1438699 2801677 53231863