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53105281053 = 31115115316961
BaseRepresentation
bin110001011101010100…
…100100100000011101
312002001222221210102020
4301131110210200131
51332224422443203
640221330250353
73556666304166
oct613524444035
9162058853366
1053105281053
1120581601730
12a360a269b9
1350141c6736
1427dad0076d
1515ac2d3153
hexc5d52481d

53105281053 has 32 divisors (see below), whose sum is σ = 77817560064. Its totient is φ = 31946400000.

The previous prime is 53105280989. The next prime is 53105281063. The reversal of 53105281053 is 35018250135.

It is not a de Polignac number, because 53105281053 - 26 = 53105280989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53105281063) 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, 7625493 + ... + 7632453.

It is an arithmetic number, because the mean of its divisors is an integer number (2431798752).

Almost surely, 253105281053 is an apocalyptic number.

It is an amenable number.

53105281053 is a deficient number, since it is larger than the sum of its proper divisors (24712279011).

53105281053 is a wasteful number, since it uses less digits than its factorization.

53105281053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8657.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 53105281053 in words is "fifty-three billion, one hundred five million, two hundred eighty-one thousand, fifty-three".

Divisors: 1 3 11 33 151 453 1531 1661 4593 4983 6961 16841 20883 50523 76571 229713 231181 693543 1051111 2542991 3153333 7628973 10657291 11562221 31971873 34686663 117230201 351690603 1609250941 4827752823 17701760351 53105281053