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12944032810 = 251294403281
BaseRepresentation
bin11000000111000011…
…00100010000101010
31020102002110222220121
430003201210100222
5203002133022220
65540231313454
7635523314662
oct140341442052
936362428817
1012944032810
115542629485
122612b1b88a
1312b3907517
148ab15b1a2
1550b598eaa
hex30386442a

12944032810 has 8 divisors (see below), whose sum is σ = 23299259076. Its totient is φ = 5177613120.

The previous prime is 12944032793. The next prime is 12944032831. The reversal of 12944032810 is 1823044921.

It can be written as a sum of positive squares in 2 ways, for example, as 12846635649 + 97397161 = 113343^2 + 9869^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×129440328102 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647201631 + ... + 647201650.

Almost surely, 212944032810 is an apocalyptic number.

12944032810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12944032810 is a deficient number, since it is larger than the sum of its proper divisors (10355226266).

12944032810 is a wasteful number, since it uses less digits than its factorization.

12944032810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294403288.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 12944032810 in words is "twelve billion, nine hundred forty-four million, thirty-two thousand, eight hundred ten".

Divisors: 1 2 5 10 1294403281 2588806562 6472016405 12944032810