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12499999393 = 71919349289
BaseRepresentation
bin10111010010000111…
…01101101010100001
31012021010221202120111
423221003231222201
5201044444440033
65424210211321
7621522145630
oct135103555241
935233852514
1012499999393
115334a18612
12250a283b41
13124291955b
148681b3517
154d25d87cd
hex2e90edaa1

12499999393 has 8 divisors (see below), whose sum is σ = 14360509440. Its totient is φ = 10658188320.

The previous prime is 12499999387. The next prime is 12499999399. The reversal of 12499999393 is 39399999421.

12499999393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12499999387) and next prime (12499999399).

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

It is a cyclic number.

It is not a de Polignac number, because 12499999393 - 217 = 12499868321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12499999399) 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 7 ways as a sum of consecutive naturals, for example, 4673308 + ... + 4675981.

It is an arithmetic number, because the mean of its divisors is an integer number (1795063680).

Almost surely, 212499999393 is an apocalyptic number.

It is an amenable number.

12499999393 is a deficient number, since it is larger than the sum of its proper divisors (1860510047).

12499999393 is an equidigital number, since it uses as much as digits as its factorization.

12499999393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9349487.

The product of its digits is 38263752, while the sum is 67.

The spelling of 12499999393 in words is "twelve billion, four hundred ninety-nine million, nine hundred ninety-nine thousand, three hundred ninety-three".

Divisors: 1 7 191 1337 9349289 65445023 1785714199 12499999393