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12385168269 = 35689772559
BaseRepresentation
bin10111000100011011…
…01010101110001101
31011222010212201212220
423202031222232031
5200331100341034
65404545045553
7615626123205
oct134215525615
934863781786
1012385168269
115286117261
1224979268b9
131224bb2246
14856c41405
154c74a4749
hex2e236ab8d

12385168269 has 8 divisors (see below), whose sum is σ = 16514075520. Its totient is φ = 8256519936.

The previous prime is 12385168261. The next prime is 12385168277. The reversal of 12385168269 is 96286158321.

It is an interprime number because it is at equal distance from previous prime (12385168261) and next prime (12385168277).

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

It is not a de Polignac number, because 12385168269 - 23 = 12385168261 is a prime.

It is a super-2 number, since 2×123851682692 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12385168261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134412 + ... + 206970.

It is an arithmetic number, because the mean of its divisors is an integer number (2064259440).

Almost surely, 212385168269 is an apocalyptic number.

It is an amenable number.

12385168269 is a deficient number, since it is larger than the sum of its proper divisors (4128907251).

12385168269 is an equidigital number, since it uses as much as digits as its factorization.

12385168269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129459.

The product of its digits is 1244160, while the sum is 51.

The spelling of 12385168269 in words is "twelve billion, three hundred eighty-five million, one hundred sixty-eight thousand, two hundred sixty-nine".

Divisors: 1 3 56897 72559 170691 217677 4128389423 12385168269