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12964426461 = 33768594849
BaseRepresentation
bin11000001001011110…
…10111001011011101
31020110111212002202000
430010233113023131
5203022343121321
65542240352513
7636161543460
oct140457271335
936414762660
1012964426461
115553098538
122619915739
1312b7bc7b7c
148adb492d7
1550d276826
hex304bd72dd

12964426461 has 16 divisors (see below), whose sum is σ = 21950352000. Its totient is φ = 7408243584.

The previous prime is 12964426429. The next prime is 12964426471. The reversal of 12964426461 is 16462446921.

12964426461 is a `hidden beast` number, since 1 + 2 + 96 + 442 + 64 + 61 = 666.

It is not a de Polignac number, because 12964426461 - 25 = 12964426429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12964426471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34297236 + ... + 34297613.

It is an arithmetic number, because the mean of its divisors is an integer number (1371897000).

Almost surely, 212964426461 is an apocalyptic number.

It is an amenable number.

12964426461 is a deficient number, since it is larger than the sum of its proper divisors (8985925539).

12964426461 is an equidigital number, since it uses as much as digits as its factorization.

12964426461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68594865 (or 68594859 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The spelling of 12964426461 in words is "twelve billion, nine hundred sixty-four million, four hundred twenty-six thousand, four hundred sixty-one".

Divisors: 1 3 7 9 21 27 63 189 68594849 205784547 480163943 617353641 1440491829 1852060923 4321475487 12964426461