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12403105051 = 23618840417
BaseRepresentation
bin10111000110100100…
…00101110100011011
31012000101122000112011
423203102011310123
5200400143330201
65410425330351
7616234440061
oct134322056433
935011560464
1012403105051
115295258447
1224a19369b7
13122882251c
14859390031
154c8d49151
hex2e3485d1b

12403105051 has 8 divisors (see below), whose sum is σ = 13154541984. Its totient is φ = 11669349120.

The previous prime is 12403105031. The next prime is 12403105061. The reversal of 12403105051 is 15050130421.

It is a happy number.

12403105051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-12403105051 is a prime.

It is a super-2 number, since 2×124031050512 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12403105031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4418806 + ... + 4421611.

It is an arithmetic number, because the mean of its divisors is an integer number (1644317748).

Almost surely, 212403105051 is an apocalyptic number.

12403105051 is a deficient number, since it is larger than the sum of its proper divisors (751436933).

12403105051 is an equidigital number, since it uses as much as digits as its factorization.

12403105051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8840501.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 12403105051 its reverse (15050130421), we get a palindrome (27453235472).

The spelling of 12403105051 in words is "twelve billion, four hundred three million, one hundred five thousand, fifty-one".

Divisors: 1 23 61 1403 8840417 203329591 539265437 12403105051