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13220113222 = 28974270299
BaseRepresentation
bin11000100111111101…
…01110101101000110
31021010022222100001001
430103332232231012
5204033322110342
610023452523514
7645415052101
oct142376565506
937108870031
1013220113222
115674455808
12268b48059a
131328b7bb04
148d5aa5738
155259308b7
hex313faeb46

13220113222 has 8 divisors (see below), whose sum is σ = 20052981000. Its totient is φ = 6535786224.

The previous prime is 13220113163. The next prime is 13220113253. The reversal of 13220113222 is 22231102231.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13220113222.

It is a congruent number.

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, 37134972 + ... + 37135327.

It is an arithmetic number, because the mean of its divisors is an integer number (2506622625).

Almost surely, 213220113222 is an apocalyptic number.

13220113222 is a deficient number, since it is larger than the sum of its proper divisors (6832867778).

13220113222 is an equidigital number, since it uses as much as digits as its factorization.

13220113222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74270390.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13220113222 its reverse (22231102231), we get a palindrome (35451215453).

The spelling of 13220113222 in words is "thirteen billion, two hundred twenty million, one hundred thirteen thousand, two hundred twenty-two".

Divisors: 1 2 89 178 74270299 148540598 6610056611 13220113222