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32013130331 = 7135313614877
BaseRepresentation
bin11101110100001000…
…011001101001011011
310001122001100112000202
4131310020121221123
51011030330132311
622412344252415
72212213055330
oct356410315133
9101561315022
1032013130331
1112638639706
12625517110b
133032488a90
141799960987
15c75731e3b
hex774219a5b

32013130331 has 32 divisors (see below), whose sum is σ = 40181920128. Its totient is φ = 24827811840.

The previous prime is 32013130319. The next prime is 32013130349. The reversal of 32013130331 is 13303131023.

It is a de Polignac number, because none of the positive numbers 2k-32013130331 is a prime.

It is a super-2 number, since 2×320131303312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32013130301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6561665 + ... + 6566541.

It is an arithmetic number, because the mean of its divisors is an integer number (1255685004).

Almost surely, 232013130331 is an apocalyptic number.

32013130331 is a deficient number, since it is larger than the sum of its proper divisors (8168789797).

32013130331 is a wasteful number, since it uses less digits than its factorization.

32013130331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6311.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 32013130331 its reverse (13303131023), we get a palindrome (45316261354).

The spelling of 32013130331 in words is "thirty-two billion, thirteen million, one hundred thirty thousand, three hundred thirty-one".

Divisors: 1 7 13 53 91 371 689 1361 4823 4877 9527 17693 34139 63401 72133 123851 258481 443807 504931 937729 1809367 3360253 6564103 6637597 23521771 46463179 86288761 351792641 604021327 2462548487 4573304333 32013130331