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13004442122 = 272461287849
BaseRepresentation
bin11000001110010000…
…00000101000001010
31020120022011002220112
430013020000220022
5203113114121442
65550230154322
7640155635300
oct140710005012
936508132815
1013004442122
115573739931
12262b1b29a2
1312c3298889
148b51a4270
15511a2d082
hex307200a0a

13004442122 has 24 divisors (see below), whose sum is σ = 22740725700. Its totient is φ = 5561223360.

The previous prime is 13004442091. The next prime is 13004442169. The reversal of 13004442122 is 22124440031.

It can be written as a sum of positive squares in 2 ways, for example, as 11807212921 + 1197229201 = 108661^2 + 34601^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98747 + ... + 189102.

Almost surely, 213004442122 is an apocalyptic number.

13004442122 is a deficient number, since it is larger than the sum of its proper divisors (9736283578).

13004442122 is a wasteful number, since it uses less digits than its factorization.

13004442122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288326 (or 288319 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 13004442122 its reverse (22124440031), we get a palindrome (35128882153).

The spelling of 13004442122 in words is "thirteen billion, four million, four hundred forty-two thousand, one hundred twenty-two".

Divisors: 1 2 7 14 49 98 461 922 3227 6454 22589 45178 287849 575698 2014943 4029886 14104601 28209202 132698389 265396778 928888723 1857777446 6502221061 13004442122