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12949267241 = 53244325797
BaseRepresentation
bin11000000111101011…
…00010001100101001
31020102110022221012102
430003311202030221
5203010003022431
65540535423145
7635615645501
oct140365421451
936373287172
1012949267241
115545584159
122614824ab5
1312b4a1ac11
148abb20a01
1550bc7edcb
hex303d62329

12949267241 has 4 divisors (see below), whose sum is σ = 13193593092. Its totient is φ = 12704941392.

The previous prime is 12949267229. The next prime is 12949267273. The reversal of 12949267241 is 14276294921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14276294921 = 72039470703.

It can be written as a sum of positive squares in 2 ways, for example, as 7921890025 + 5027377216 = 89005^2 + 70904^2 .

It is a cyclic number.

It is not a de Polignac number, because 12949267241 - 210 = 12949266217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12949267211) 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, 122162846 + ... + 122162951.

It is an arithmetic number, because the mean of its divisors is an integer number (3298398273).

Almost surely, 212949267241 is an apocalyptic number.

It is an amenable number.

12949267241 is a deficient number, since it is larger than the sum of its proper divisors (244325851).

12949267241 is an equidigital number, since it uses as much as digits as its factorization.

12949267241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244325850.

The product of its digits is 435456, while the sum is 47.

The spelling of 12949267241 in words is "twelve billion, nine hundred forty-nine million, two hundred sixty-seven thousand, two hundred forty-one".

Divisors: 1 53 244325797 12949267241