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12406230641 = 717457228127
BaseRepresentation
bin10111000110111100…
…00000111001110001
31012000121111211000202
423203132000321301
5200401443340031
65411020324545
7616303135430
oct134336007161
935017454022
1012406230641
115296aa2782
1224a29a3755
13122937809c
14859965117
154c92652cb
hex2e3780e71

12406230641 has 16 divisors (see below), whose sum is σ = 15045497856. Its totient is φ = 9986443776.

The previous prime is 12406230637. The next prime is 12406230643. The reversal of 12406230641 is 14603260421.

12406230641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12406230641 - 22 = 12406230637 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 (12406230643) 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 15 ways as a sum of consecutive naturals, for example, 59681 + ... + 168446.

It is an arithmetic number, because the mean of its divisors is an integer number (940343616).

Almost surely, 212406230641 is an apocalyptic number.

It is an amenable number.

12406230641 is a deficient number, since it is larger than the sum of its proper divisors (2639267215).

12406230641 is a wasteful number, since it uses less digits than its factorization.

12406230641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228608.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 12406230641 in words is "twelve billion, four hundred six million, two hundred thirty thousand, six hundred forty-one".

Divisors: 1 7 17 119 457 3199 7769 54383 228127 1596889 3878159 27147113 104254039 729778273 1772318663 12406230641