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13220571112 = 237236081627
BaseRepresentation
bin11000101000000000…
…11110011111101000
31021010100211121010221
430110000132133220
5204033431233422
610023510415424
7645422000050
oct142400363750
937110747127
1013220571112
115674738831
12268b661574
131328cac358
148d5b84560
155259c13c7
hex31401e7e8

13220571112 has 16 divisors (see below), whose sum is σ = 28329795360. Its totient is φ = 5665959024.

The previous prime is 13220571107. The next prime is 13220571113. The reversal of 13220571112 is 21117502231.

It is not an unprimeable number, because it can be changed into a prime (13220571113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118040758 + ... + 118040869.

It is an arithmetic number, because the mean of its divisors is an integer number (1770612210).

Almost surely, 213220571112 is an apocalyptic number.

It is an amenable number.

13220571112 is an abundant number, since it is smaller than the sum of its proper divisors (15109224248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13220571112 is a wasteful number, since it uses less digits than its factorization.

13220571112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236081640 (or 236081636 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The spelling of 13220571112 in words is "thirteen billion, two hundred twenty million, five hundred seventy-one thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 236081627 472163254 944326508 1652571389 1888653016 3305142778 6610285556 13220571112