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129949002413 = 167778137739
BaseRepresentation
bin111100100000110010…
…0000110101010101101
3110102102100222022002022
41321001210012222231
54112113421034123
6135410414035525
712250154203226
oct1710144065255
9412370868068
10129949002413
115012490796a
12212277a8ba5
13c33c45a349
14640a7d224d
1535a863d1c8
hex1e41906aad

129949002413 has 4 divisors (see below), whose sum is σ = 130727140320. Its totient is φ = 129170864508.

The previous prime is 129949002367. The next prime is 129949002427. The reversal of 129949002413 is 314200949921.

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: 314200949921 = 514816103241.

It is a cyclic number.

It is not a de Polignac number, because 129949002413 - 212 = 129948998317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129949202413) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 389068703 + ... + 389069036.

It is an arithmetic number, because the mean of its divisors is an integer number (32681785080).

Almost surely, 2129949002413 is an apocalyptic number.

It is an amenable number.

129949002413 is a deficient number, since it is larger than the sum of its proper divisors (778137907).

129949002413 is an equidigital number, since it uses as much as digits as its factorization.

129949002413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778137906.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 129949002413 in words is "one hundred twenty-nine billion, nine hundred forty-nine million, two thousand, four hundred thirteen".

Divisors: 1 167 778137739 129949002413