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12837210947 = 111167019177
BaseRepresentation
bin10111111010010100…
…00100101101000011
31020010122110212212022
423331022010231003
5202242311222242
65521453552055
7633055330661
oct137512045503
936118425768
1012837210947
1154982a8650
1225a31a562b
131297745912
1489acb1c31
15501ee80d2
hex2fd284b43

12837210947 has 4 divisors (see below), whose sum is σ = 14004230136. Its totient is φ = 11670191760.

The previous prime is 12837210943. The next prime is 12837210983. The reversal of 12837210947 is 74901273821.

12837210947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74901273821 = 116809206711.

It is a cyclic number.

It is not a de Polignac number, because 12837210947 - 22 = 12837210943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12837210898 and 12837210907.

It is not an unprimeable number, because it can be changed into a prime (12837210943) 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, 583509578 + ... + 583509599.

It is an arithmetic number, because the mean of its divisors is an integer number (3501057534).

Almost surely, 212837210947 is an apocalyptic number.

12837210947 is a deficient number, since it is larger than the sum of its proper divisors (1167019189).

12837210947 is a wasteful number, since it uses less digits than its factorization.

12837210947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167019188.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 12837210947 in words is "twelve billion, eight hundred thirty-seven million, two hundred ten thousand, nine hundred forty-seven".

Divisors: 1 11 1167019177 12837210947