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13220112032 = 25782952769
BaseRepresentation
bin11000100111111101…
…01110011010100000
31021010022222021101222
430103332232122200
5204033322041112
610023452514212
7645415045451
oct142376563240
937108867358
1013220112032
115674454926
12268b47b968
131328b7b3ca
148d5aa5128
15525930372
hex313fae6a0

13220112032 has 24 divisors (see below), whose sum is σ = 26030913300. Its totient is φ = 6609086464.

The previous prime is 13220112029. The next prime is 13220112053. The reversal of 13220112032 is 23021102231.

It can be written as a sum of positive squares in 2 ways, for example, as 11836569616 + 1383542416 = 108796^2 + 37196^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13220112032.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224144 + ... + 276912.

Almost surely, 213220112032 is an apocalyptic number.

It is an amenable number.

13220112032 is a deficient number, since it is larger than the sum of its proper divisors (12810801268).

13220112032 is an equidigital number, since it uses as much as digits as its factorization.

13220112032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60608 (or 60600 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13220112032 its reverse (23021102231), we get a palindrome (36241214263).

The spelling of 13220112032 in words is "thirteen billion, two hundred twenty million, one hundred twelve thousand, thirty-two".

Divisors: 1 2 4 8 16 32 7829 15658 31316 52769 62632 105538 125264 211076 250528 422152 844304 1688608 413128501 826257002 1652514004 3305028008 6610056016 13220112032