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53799187 = 1353113691
BaseRepresentation
bin1100110100111…
…0100100010011
310202020021121111
43031032210103
5102233033222
65201034151
71222166641
oct315164423
9122207544
1053799187
1128406142
1216025957
13b1b8750
147206191
154aca777
hex334e913

53799187 has 16 divisors (see below), whose sum is σ = 59639328. Its totient is φ = 48222720.

The previous prime is 53799157. The next prime is 53799223. The reversal of 53799187 is 78199735.

53799187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-53799187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53799187.

It is not an unprimeable number, because it can be changed into a prime (53799107) 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 15 ways as a sum of consecutive naturals, for example, 77512 + ... + 78202.

It is an arithmetic number, because the mean of its divisors is an integer number (3727458).

Almost surely, 253799187 is an apocalyptic number.

53799187 is the 5989-th pentagonal number.

53799187 is a deficient number, since it is larger than the sum of its proper divisors (5840141).

53799187 is a wasteful number, since it uses less digits than its factorization.

53799187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870.

The product of its digits is 476280, while the sum is 49.

The square root of 53799187 is about 7334.7929077787. The cubic root of 53799187 is about 377.5071986698.

The spelling of 53799187 in words is "fifty-three million, seven hundred ninety-nine thousand, one hundred eighty-seven".

Divisors: 1 13 53 113 689 691 1469 5989 8983 36623 77857 78083 476099 1015079 4138399 53799187