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12402973207 = 49872487061
BaseRepresentation
bin10111000110100011…
…00101101000010111
31012000101101022200001
423203101211220113
5200400130120312
65410422432131
7616233350512
oct134321455027
935011338601
1012402973207
115295178389
1224a1892647
1312287a7501
14859357d79
154c8d20057
hex2e3465a17

12402973207 has 4 divisors (see below), whose sum is σ = 12405465256. Its totient is φ = 12400481160.

The previous prime is 12402973189. The next prime is 12402973213. The reversal of 12402973207 is 70237920421.

12402973207 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.

It is a cyclic number.

It is not a de Polignac number, because 12402973207 - 211 = 12402971159 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 (12402973507) 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, 1238544 + ... + 1248517.

It is an arithmetic number, because the mean of its divisors is an integer number (3101366314).

Almost surely, 212402973207 is an apocalyptic number.

12402973207 is a deficient number, since it is larger than the sum of its proper divisors (2492049).

12402973207 is an equidigital number, since it uses as much as digits as its factorization.

12402973207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492048.

The product of its (nonzero) digits is 42336, while the sum is 37.

The spelling of 12402973207 in words is "twelve billion, four hundred two million, nine hundred seventy-three thousand, two hundred seven".

Divisors: 1 4987 2487061 12402973207