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13853893129 = 17977396051
BaseRepresentation
bin11001110011100000…
…11010001000001001
31022202111112200121221
430321300122020021
5211333044040004
610210413002041
71000212101656
oct147160321011
938674480557
1013853893129
11596a185a5a
122827783321
1313ca273ccb
14955d22c2d
155613c2354
hex339c1a209

13853893129 has 4 divisors (see below), whose sum is σ = 13931289360. Its totient is φ = 13776496900.

The previous prime is 13853893127. The next prime is 13853893139. The reversal of 13853893129 is 92139835831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92139835831 = 175419990343.

It is a cyclic number.

It is not a de Polignac number, because 13853893129 - 21 = 13853893127 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13853893127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38697847 + ... + 38698204.

It is an arithmetic number, because the mean of its divisors is an integer number (3482822340).

Almost surely, 213853893129 is an apocalyptic number.

It is an amenable number.

13853893129 is a deficient number, since it is larger than the sum of its proper divisors (77396231).

13853893129 is an equidigital number, since it uses as much as digits as its factorization.

13853893129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77396230.

The product of its digits is 1399680, while the sum is 52.

The spelling of 13853893129 in words is "thirteen billion, eight hundred fifty-three million, eight hundred ninety-three thousand, one hundred twenty-nine".

Divisors: 1 179 77396051 13853893129