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53515514143 = 713245237121
BaseRepresentation
bin110001110101110001…
…011111000100011111
312010010120212210102101
4301311301133010133
51334044432423033
640330143105531
73603110236060
oct616561370437
9163116783371
1053515514143
1120772126943
12a4562a22a7
13507b1aba00
1428395aa567
1515d331897d
hexc75c5f11f

53515514143 has 12 divisors (see below), whose sum is σ = 66227146608. Its totient is φ = 42341944320.

The previous prime is 53515514141. The next prime is 53515514177. The reversal of 53515514143 is 34141551535.

It is not a de Polignac number, because 53515514143 - 21 = 53515514141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53515514141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22617378 + ... + 22619743.

It is an arithmetic number, because the mean of its divisors is an integer number (5518928884).

Almost surely, 253515514143 is an apocalyptic number.

53515514143 is a deficient number, since it is larger than the sum of its proper divisors (12711632465).

53515514143 is a wasteful number, since it uses less digits than its factorization.

53515514143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45237154 (or 45237141 counting only the distinct ones).

The product of its digits is 90000, while the sum is 37.

The spelling of 53515514143 in words is "fifty-three billion, five hundred fifteen million, five hundred fourteen thousand, one hundred forty-three".

Divisors: 1 7 13 91 169 1183 45237121 316659847 588082573 4116578011 7645073449 53515514143