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12305840758 = 216693686591
BaseRepresentation
bin10110111010111110…
…00011101001110110
31011202121121110222221
423131133003221312
5200200243401013
65353032512554
7613643630521
oct133537035166
934677543887
1012305840758
115245365332
12247524b75a
131211628ca3
1484a4b1bb8
154c053508d
hex2dd7c3a76

12305840758 has 8 divisors (see below), whose sum is σ = 18469825920. Its totient is φ = 6149232120.

The previous prime is 12305840741. The next prime is 12305840761. The reversal of 12305840758 is 85704850321.

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

It is a super-2 number, since 2×123058407582 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 1839958 + ... + 1846633.

It is an arithmetic number, because the mean of its divisors is an integer number (2308728240).

Almost surely, 212305840758 is an apocalyptic number.

12305840758 is a deficient number, since it is larger than the sum of its proper divisors (6163985162).

12305840758 is a wasteful number, since it uses less digits than its factorization.

12305840758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688262.

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 12305840758 in words is "twelve billion, three hundred five million, eight hundred forty thousand, seven hundred fifty-eight".

Divisors: 1 2 1669 3338 3686591 7373182 6152920379 12305840758