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13405392049 = 7137102113691
BaseRepresentation
bin11000111110000011…
…00000110010110001
31021121020121110210211
430133001200302301
5204423240021144
610054112024121
7653124644440
oct143701406261
937536543724
1013405392049
115759aa3505
122721532041
13135838065a
14912534d57
15536d2d034
hex31f060cb1

13405392049 has 16 divisors (see below), whose sum is σ = 15448519296. Its totient is φ = 11394460800.

The previous prime is 13405392037. The next prime is 13405392061. The reversal of 13405392049 is 94029350431.

It is an interprime number because it is at equal distance from previous prime (13405392037) and next prime (13405392061).

It is a cyclic number.

It is not a de Polignac number, because 13405392049 - 221 = 13403294897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13405392019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 972294 + ... + 985984.

It is an arithmetic number, because the mean of its divisors is an integer number (965532456).

Almost surely, 213405392049 is an apocalyptic number.

It is an amenable number.

13405392049 is a deficient number, since it is larger than the sum of its proper divisors (2043127247).

13405392049 is a wasteful number, since it uses less digits than its factorization.

13405392049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14856.

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 13405392049 in words is "thirteen billion, four hundred five million, three hundred ninety-two thousand, forty-nine".

Divisors: 1 7 137 959 1021 7147 13691 95837 139877 979139 1875667 13129669 13978511 97849577 1915056007 13405392049