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12431950466 = 21343310331069
BaseRepresentation
bin10111001010000000…
…01000001010000010
31012002101220111222212
423211000020022002
5200430034403331
65413335502122
7620034556355
oct134500101202
935071814885
1012431950466
1152aa56a431
1224ab527942
1312317b1b10
1485d13c29c
154cb645d2b
hex2e5008282

12431950466 has 32 divisors (see below), whose sum is σ = 20167094640. Its totient is φ = 5713680384.

The previous prime is 12431950411. The next prime is 12431950483. The reversal of 12431950466 is 66405913421.

It can be written as a sum of positive squares in 8 ways, for example, as 4566921241 + 7865029225 = 67579^2 + 88685^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11628980 + ... + 11630048.

Almost surely, 212431950466 is an apocalyptic number.

12431950466 is a deficient number, since it is larger than the sum of its proper divisors (7735144174).

12431950466 is a wasteful number, since it uses less digits than its factorization.

12431950466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 12431950466 in words is "twelve billion, four hundred thirty-one million, nine hundred fifty thousand, four hundred sixty-six".

Divisors: 1 2 13 26 433 866 1033 1069 2066 2138 5629 11258 13429 13897 26858 27794 447289 462877 894578 925754 1104277 2208554 5814757 6017401 11629514 12034802 14355601 28711202 478151941 956303882 6215975233 12431950466