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12830234487839 = 29442421878891
BaseRepresentation
bin1011101010110100010110…
…0100011010110000011111
31200102120002002201221222222
42322231011210122300133
53140202310012102324
643142043420255555
72462645112510266
oct272550544326037
950376062657888
1012830234487839
1140a72a998082a
1215327036a15bb
13720b694a2242
14324db558b5dd
15173b2570955e
hexbab4591ac1f

12830234487839 has 4 divisors (see below), whose sum is σ = 13272656366760. Its totient is φ = 12387812608920.

The previous prime is 12830234487809. The next prime is 12830234487857. The reversal of 12830234487839 is 93878443203821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12830234487839 - 220 = 12830233439263 is a prime.

It is a super-2 number, since 2×128302344878392 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12830234487809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221210939417 + ... + 221210939474.

It is an arithmetic number, because the mean of its divisors is an integer number (3318164091690).

Almost surely, 212830234487839 is an apocalyptic number.

12830234487839 is a deficient number, since it is larger than the sum of its proper divisors (442421878921).

12830234487839 is an equidigital number, since it uses as much as digits as its factorization.

12830234487839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442421878920.

The product of its (nonzero) digits is 55738368, while the sum is 62.

The spelling of 12830234487839 in words is "twelve trillion, eight hundred thirty billion, two hundred thirty-four million, four hundred eighty-seven thousand, eight hundred thirty-nine".

Divisors: 1 29 442421878891 12830234487839