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53120521051015 = 5111747555799487
BaseRepresentation
bin11000001010000000101011…
…10010011001101110000111
320222002021100110001021201011
430011000111302121232013
523430311311342113030
6304551121441143051
714121555013621615
oct1405002562315607
9228067313037634
1053120521051015
1115a20317314260
125b5b14302aa87
132384322382c42
14d19092b1c6b5
15621bbee7eb2a
hex305015c99b87

53120521051015 has 32 divisors (see below), whose sum is σ = 69592616884224. Its totient is φ = 38603656045440.

The previous prime is 53120521050997. The next prime is 53120521051057. The reversal of 53120521051015 is 51015012502135.

It is not a de Polignac number, because 53120521051015 - 217 = 53120520919943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 533894602 + ... + 533994088.

It is an arithmetic number, because the mean of its divisors is an integer number (2174769277632).

Almost surely, 253120521051015 is an apocalyptic number.

53120521051015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53120521051015 is a deficient number, since it is larger than the sum of its proper divisors (16472095833209).

53120521051015 is a wasteful number, since it uses less digits than its factorization.

53120521051015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106807.

The product of its (nonzero) digits is 7500, while the sum is 31.

The spelling of 53120521051015 in words is "fifty-three trillion, one hundred twenty billion, five hundred twenty-one million, fifty-one thousand, fifteen".

Divisors: 1 5 11 55 1747 5557 8735 19217 27785 61127 96085 99487 305635 497435 1094357 5471785 9708079 48540395 106788869 173803789 533944345 552849259 869018945 1911841679 2764246295 6081341849 9559208395 30406709245 965827655473 4829138277365 10624104210203 53120521051015