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13315044142 = 26657522071
BaseRepresentation
bin11000110011010001…
…10111001100101110
31021100221121022210001
430121220313030232
5204232122403032
610041123334514
7650650002451
oct143150671456
937327538701
1013315044142
115712aa4814
1226b722143a
13134273925a
14904537498
1552de333e7
hex319a3732e

13315044142 has 4 divisors (see below), whose sum is σ = 19972566216. Its totient is φ = 6657522070.

The previous prime is 13315044139. The next prime is 13315044151. The reversal of 13315044142 is 24144051331.

It is a semiprime because it is the product of two primes.

It is a super-4 number, since 4×133150441424 (a number of 42 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13315044142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3328761034 + ... + 3328761037.

It is an arithmetic number, because the mean of its divisors is an integer number (4993141554).

Almost surely, 213315044142 is an apocalyptic number.

13315044142 is a deficient number, since it is larger than the sum of its proper divisors (6657522074).

13315044142 is an equidigital number, since it uses as much as digits as its factorization.

13315044142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6657522073.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 13315044142 its reverse (24144051331), we get a palindrome (37459095473).

The spelling of 13315044142 in words is "thirteen billion, three hundred fifteen million, forty-four thousand, one hundred forty-two".

Divisors: 1 2 6657522071 13315044142