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12346023623 = 19649790717
BaseRepresentation
bin10110111111110000…
…10101111011000111
31011212102012222112012
423133320111323013
5200241040223443
65401030044435
7614642316653
oct133770257307
934772188465
1012346023623
11526601030a
1224867a971b
131219a57b2b
14851971a63
154c3d21118
hex2dfe15ec7

12346023623 has 4 divisors (see below), whose sum is σ = 12995814360. Its totient is φ = 11696232888.

The previous prime is 12346023617. The next prime is 12346023629. The reversal of 12346023623 is 32632064321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32632064321 = 223146332127.

It is an interprime number because it is at equal distance from previous prime (12346023617) and next prime (12346023629).

It is a cyclic number.

It is not a de Polignac number, because 12346023623 - 210 = 12346022599 is a prime.

It is a super-2 number, since 2×123460236232 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12346023623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12346023629) 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, 324895340 + ... + 324895377.

It is an arithmetic number, because the mean of its divisors is an integer number (3248953590).

Almost surely, 212346023623 is an apocalyptic number.

12346023623 is a deficient number, since it is larger than the sum of its proper divisors (649790737).

12346023623 is an equidigital number, since it uses as much as digits as its factorization.

12346023623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649790736.

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 12346023623 its reverse (32632064321), we get a palindrome (44978087944).

The spelling of 12346023623 in words is "twelve billion, three hundred forty-six million, twenty-three thousand, six hundred twenty-three".

Divisors: 1 19 649790717 12346023623