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32312232013 = 297109156733
BaseRepresentation
bin11110000101111101…
…011000100001001101
310002101220011110101211
4132011331120201031
51012133412411023
622502151134421
72222504304025
oct360575304115
9102356143354
1032312232013
111278145a186
126319374411
13307c430a19
1417c757ca85
15c91b14a0d
hex785f5884d

32312232013 has 8 divisors (see below), whose sum is σ = 33431362200. Its totient is φ = 31193429568.

The previous prime is 32312231999. The next prime is 32312232023. The reversal of 32312232013 is 31023221323.

It can be written as a sum of positive squares in 4 ways, for example, as 1134207684 + 31178024329 = 33678^2 + 176573^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-32312232013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32312232023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127795 + ... + 284527.

It is an arithmetic number, because the mean of its divisors is an integer number (4178920275).

Almost surely, 232312232013 is an apocalyptic number.

It is an amenable number.

32312232013 is a deficient number, since it is larger than the sum of its proper divisors (1119130187).

32312232013 is a wasteful number, since it uses less digits than its factorization.

32312232013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163871.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 32312232013 its reverse (31023221323), we get a palindrome (63335453336).

The spelling of 32312232013 in words is "thirty-two billion, three hundred twelve million, two hundred thirty-two thousand, thirteen".

Divisors: 1 29 7109 156733 206161 4545257 1114214897 32312232013