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13013138852 = 2271727338527
BaseRepresentation
bin11000001111010010…
…01011110110100100
31020120220111221120122
430013221023312210
5203122330420402
65551140421112
7640322566220
oct140751136644
936526457518
1013013138852
11557863990a
1226320a7798
1312c502217c
148b63c9780
15512699ca2
hex307a4bda4

13013138852 has 24 divisors (see below), whose sum is σ = 27557236224. Its totient is φ = 5248996992.

The previous prime is 13013138839. The next prime is 13013138861. The reversal of 13013138852 is 25883131031.

13013138852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13668788 + ... + 13669739.

It is an arithmetic number, because the mean of its divisors is an integer number (1148218176).

Almost surely, 213013138852 is an apocalyptic number.

It is an amenable number.

13013138852 is an abundant number, since it is smaller than the sum of its proper divisors (14544097372).

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

13013138852 is a wasteful number, since it uses less digits than its factorization.

13013138852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27338555 (or 27338553 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

Adding to 13013138852 its reverse (25883131031), we get a palindrome (38896269883).

The spelling of 13013138852 in words is "thirteen billion, thirteen million, one hundred thirty-eight thousand, eight hundred fifty-two".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 27338527 54677054 109354108 191369689 382739378 464754959 765478756 929509918 1859019836 3253284713 6506569426 13013138852