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32031013013 = 97330216629
BaseRepresentation
bin11101110101001100…
…100111100010010101
310001200022000001110022
4131311030213202111
51011044414404023
622414223434525
72212521055406
oct356514474225
9101608001408
1032031013013
111264774318a
12625b155a45
1330360aa54c
14179c0979ad
15c770b57c8
hex775327895

32031013013 has 4 divisors (see below), whose sum is σ = 32361229740. Its totient is φ = 31700796288.

The previous prime is 32031012983. The next prime is 32031013033. The reversal of 32031013013 is 31031013023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31031013023 = 36784553169.

It can be written as a sum of positive squares in 2 ways, for example, as 18338034724 + 13692978289 = 135418^2 + 117017^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-32031013013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 32031012982 and 32031013000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32031013033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165108218 + ... + 165108411.

It is an arithmetic number, because the mean of its divisors is an integer number (8090307435).

Almost surely, 232031013013 is an apocalyptic number.

It is an amenable number.

32031013013 is a deficient number, since it is larger than the sum of its proper divisors (330216727).

32031013013 is an equidigital number, since it uses as much as digits as its factorization.

32031013013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330216726.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 32031013013 its reverse (31031013023), we get a palindrome (63062026036).

The spelling of 32031013013 in words is "thirty-two billion, thirty-one million, thirteen thousand, thirteen".

Divisors: 1 97 330216629 32031013013