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12987728030 = 251298772803
BaseRepresentation
bin11000001100010000…
…10000000010011110
31020112010200221111002
430012020100002132
5203044324244110
65544432030302
7636563603204
oct140610200236
936463627432
1012987728030
115565263332
122625692392
1312bc995c94
148b2c93074
1551032aaa5
hex30621009e

12987728030 has 8 divisors (see below), whose sum is σ = 23377910472. Its totient is φ = 5195091208.

The previous prime is 12987728023. The next prime is 12987728053. The reversal of 12987728030 is 3082778921.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649386392 + ... + 649386411.

It is an arithmetic number, because the mean of its divisors is an integer number (2922238809).

Almost surely, 212987728030 is an apocalyptic number.

12987728030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12987728030 is a deficient number, since it is larger than the sum of its proper divisors (10390182442).

12987728030 is a wasteful number, since it uses less digits than its factorization.

12987728030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298772810.

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 12987728030 in words is "twelve billion, nine hundred eighty-seven million, seven hundred twenty-eight thousand, thirty".

Divisors: 1 2 5 10 1298772803 2597545606 6493864015 12987728030