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12320203229 = 172179238159
BaseRepresentation
bin10110111100101011…
…10110000111011101
31011210121122011121022
423132111312013131
5200212433000404
65354304413525
7614206666565
oct133625660735
934717564538
1012320203229
115252485044
12247a0172a5
1312145b73a9
1484c36dda5
154c19208be
hex2de5761dd

12320203229 has 12 divisors (see below), whose sum is σ = 13160721600. Its totient is φ = 11530657728.

The previous prime is 12320203213. The next prime is 12320203321. The reversal of 12320203229 is 92230202321.

It is not a de Polignac number, because 12320203229 - 24 = 12320203213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12320203198 and 12320203207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320223229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67349 + ... + 170810.

It is an arithmetic number, because the mean of its divisors is an integer number (1096726800).

Almost surely, 212320203229 is an apocalyptic number.

It is an amenable number.

12320203229 is a deficient number, since it is larger than the sum of its proper divisors (840518371).

12320203229 is a wasteful number, since it uses less digits than its factorization.

12320203229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238372 (or 238355 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 12320203229 in words is "twelve billion, three hundred twenty million, two hundred three thousand, two hundred twenty-nine".

Divisors: 1 17 179 289 3043 51731 238159 4048703 42630461 68827951 724717837 12320203229