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220131322013 = 257897195479
BaseRepresentation
bin1100110100000011011…
…0010110100010011101
3210001012022220210200102
43031000312112202131
512101312104301023
6245043230110445
721622026235631
oct3150066264235
9701168823612
10220131322013
11853a2435409
12367b564b425
13179b1c86235
14a9239ccdc1
155ad59d0628
hex3340d9689d

220131322013 has 8 divisors (see below), whose sum is σ = 221014812480. Its totient is φ = 219248040960.

The previous prime is 220131322009. The next prime is 220131322051. The reversal of 220131322013 is 310223131022.

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

It is a cyclic number.

It is not a de Polignac number, because 220131322013 - 22 = 220131322009 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 (220131322613) 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, 2257808 + ... + 2353286.

It is an arithmetic number, because the mean of its divisors is an integer number (27626851560).

Almost surely, 2220131322013 is an apocalyptic number.

It is an amenable number.

220131322013 is a deficient number, since it is larger than the sum of its proper divisors (883490467).

220131322013 is an equidigital number, since it uses as much as digits as its factorization.

220131322013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104707.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 220131322013 its reverse (310223131022), we get a palindrome (530354453035).

The spelling of 220131322013 in words is "two hundred twenty billion, one hundred thirty-one million, three hundred twenty-two thousand, thirteen".

Divisors: 1 257 8971 95479 2305547 24538103 856542109 220131322013