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12303187997 = 171304355487
BaseRepresentation
bin10110111010101001…
…11100000000011101
31011202102121201002112
423131110330000131
5200144104003442
65352500003405
7613612241522
oct133524740035
934672551075
1012303187997
115243913271
122474390565
131210c0a6c9
14849dc1149
154c01ae082
hex2dd53c01d

12303187997 has 8 divisors (see below), whose sum is σ = 13028138496. Its totient is φ = 11578374592.

The previous prime is 12303187951. The next prime is 12303188033. The reversal of 12303187997 is 79978130321.

12303187997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12303187997 - 212 = 12303183901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303187937) 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, 193988 + ... + 249474.

It is an arithmetic number, because the mean of its divisors is an integer number (1628517312).

Almost surely, 212303187997 is an apocalyptic number.

12303187997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12303187997 is a deficient number, since it is larger than the sum of its proper divisors (724950499).

12303187997 is a wasteful number, since it uses less digits than its factorization.

12303187997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68547.

The product of its (nonzero) digits is 571536, while the sum is 50.

The spelling of 12303187997 in words is "twelve billion, three hundred three million, one hundred eighty-seven thousand, nine hundred ninety-seven".

Divisors: 1 17 13043 55487 221731 943279 723716941 12303187997