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12420334103 = 149148356209
BaseRepresentation
bin10111001000100111…
…10100001000010111
31012001121001100100012
423210103310020113
5200414101142403
65412242510435
7616534045412
oct134423641027
935047040305
1012420334103
1152a3a55931
1224a766541b
13122c275628
1485b796b79
154ca5eded8
hex2e44f4217

12420334103 has 8 divisors (see below), whose sum is σ = 12512346000. Its totient is φ = 12328437888.

The previous prime is 12420334081. The next prime is 12420334111. The reversal of 12420334103 is 30143302421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12420334103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420339103) 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, 192863 + ... + 249071.

It is an arithmetic number, because the mean of its divisors is an integer number (1564043250).

Almost surely, 212420334103 is an apocalyptic number.

12420334103 is a deficient number, since it is larger than the sum of its proper divisors (92011897).

12420334103 is a wasteful number, since it uses less digits than its factorization.

12420334103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57841.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 12420334103 its reverse (30143302421), we get a palindrome (42563636524).

The spelling of 12420334103 in words is "twelve billion, four hundred twenty million, three hundred thirty-four thousand, one hundred three".

Divisors: 1 149 1483 56209 220967 8375141 83357947 12420334103