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32116305431 = 75321633337
BaseRepresentation
bin11101111010010001…
…111110111000010111
310001220020111100122202
4131322101332320113
51011233233233211
622430511515115
72214605043350
oct357221767027
9101806440582
1032116305431
11126908a9691
126283828a9b
13304a971832
1417a953ad27
15c7e81253b
hex77a47ee17

32116305431 has 12 divisors (see below), whose sum is σ = 37409973552. Its totient is φ = 27008844096.

The previous prime is 32116305421. The next prime is 32116305439. The reversal of 32116305431 is 13450361123.

It is not a de Polignac number, because 32116305431 - 26 = 32116305367 is a prime.

It is a super-2 number, since 2×321163054312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32116305394 and 32116305403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32116305439) 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, 797006 + ... + 836331.

It is an arithmetic number, because the mean of its divisors is an integer number (3117497796).

Almost surely, 232116305431 is an apocalyptic number.

32116305431 is a deficient number, since it is larger than the sum of its proper divisors (5293668121).

32116305431 is an equidigital number, since it uses as much as digits as its factorization.

32116305431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633450 (or 1633397 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 32116305431 its reverse (13450361123), we get a palindrome (45566666554).

The spelling of 32116305431 in words is "thirty-two billion, one hundred sixteen million, three hundred five thousand, four hundred thirty-one".

Divisors: 1 7 53 371 2809 19663 1633337 11433359 86566861 605968027 4588043633 32116305431