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53711322431 = 1337389287059
BaseRepresentation
bin110010000001011100…
…011011110100111111
312010122020022212220012
4302001130123310333
51340000044304211
640401420013435
73611005464524
oct620134336477
9163566285805
1053711322431
1120862706578
12a4ab99127b
1350ac9290c0
1428575bb14b
1515e55e5d8b
hexc8171bd3f

53711322431 has 16 divisors (see below), whose sum is σ = 59559208800. Its totient is φ = 48115513728.

The previous prime is 53711322383. The next prime is 53711322449. The reversal of 53711322431 is 13422311735.

It is a cyclic number.

It is not a de Polignac number, because 53711322431 - 234 = 36531453247 is a prime.

It is a super-2 number, since 2×537113224312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53711322481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43580 + ... + 330638.

It is an arithmetic number, because the mean of its divisors is an integer number (3722450550).

Almost surely, 253711322431 is an apocalyptic number.

53711322431 is a deficient number, since it is larger than the sum of its proper divisors (5847886369).

53711322431 is a wasteful number, since it uses less digits than its factorization.

53711322431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287498.

The product of its digits is 15120, while the sum is 32.

The spelling of 53711322431 in words is "fifty-three billion, seven hundred eleven million, three hundred twenty-two thousand, four hundred thirty-one".

Divisors: 1 13 37 389 481 5057 14393 187109 287059 3731767 10621183 111665951 138075379 1451657363 4131640187 53711322431