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53430663 = 31113269463
BaseRepresentation
bin1100101111010…
…0100110000111
310201112120002110
43023310212013
5102134240123
65145112103
71216103346
oct313644607
9121476073
1053430663
1128184280
1215a88633
13b0b9aa0
14714bb5d
154a56493
hex32f4987

53430663 has 32 divisors (see below), whose sum is σ = 84188160. Its totient is φ = 29715840.

The previous prime is 53430661. The next prime is 53430697. The reversal of 53430663 is 36603435.

It is not a de Polignac number, because 53430663 - 21 = 53430661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53430663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53430661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115170 + ... + 115632.

It is an arithmetic number, because the mean of its divisors is an integer number (2630880).

Almost surely, 253430663 is an apocalyptic number.

53430663 is a deficient number, since it is larger than the sum of its proper divisors (30757497).

53430663 is a wasteful number, since it uses less digits than its factorization.

53430663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759.

The product of its (nonzero) digits is 19440, while the sum is 30.

The square root of 53430663 is about 7309.6281027149. The cubic root of 53430663 is about 376.6432492120.

The spelling of 53430663 in words is "fifty-three million, four hundred thirty thousand, six hundred sixty-three".

Divisors: 1 3 11 13 33 39 143 269 429 463 807 1389 2959 3497 5093 6019 8877 10491 15279 18057 38467 66209 115401 124547 198627 373641 1370017 1619111 4110051 4857333 17810221 53430663