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12863583867 = 34287861289
BaseRepresentation
bin10111111101011101…
…01011011001111011
31020012111002202201010
423332232223121323
5202321034140432
65524235125003
7633525441651
oct137656533173
936174082633
1012863583867
115501180a52
1225abba3763
1312a004a9b4
148a05b8dd1
155044a73cc
hex2febab67b

12863583867 has 4 divisors (see below), whose sum is σ = 17151445160. Its totient is φ = 8575722576.

The previous prime is 12863583841. The next prime is 12863583877. The reversal of 12863583867 is 76838536821.

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

It is not a de Polignac number, because 12863583867 - 28 = 12863583611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12863583877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2143930642 + ... + 2143930647.

It is an arithmetic number, because the mean of its divisors is an integer number (4287861290).

Almost surely, 212863583867 is an apocalyptic number.

12863583867 is a deficient number, since it is larger than the sum of its proper divisors (4287861293).

12863583867 is an equidigital number, since it uses as much as digits as its factorization.

12863583867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287861292.

The product of its digits is 11612160, while the sum is 57.

The spelling of 12863583867 in words is "twelve billion, eight hundred sixty-three million, five hundred eighty-three thousand, eight hundred sixty-seven".

Divisors: 1 3 4287861289 12863583867