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12303042451 = 72251082499
BaseRepresentation
bin10110111010101000…
…11000011110010011
31011202102100022102221
423131110120132103
5200144034324301
65352452521511
7613611064300
oct133524303623
934672308387
1012303042451
115243823987
122474320297
131210b8939b
14849d840a7
154c0180da1
hex2dd518793

12303042451 has 6 divisors (see below), whose sum is σ = 14311702500. Its totient is φ = 10545464916.

The previous prime is 12303042449. The next prime is 12303042503. The reversal of 12303042451 is 15424030321.

It is not a de Polignac number, because 12303042451 - 21 = 12303042449 is a prime.

It is a super-2 number, since 2×123030424512 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12303012451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125541201 + ... + 125541298.

It is an arithmetic number, because the mean of its divisors is an integer number (2385283750).

Almost surely, 212303042451 is an apocalyptic number.

12303042451 is a deficient number, since it is larger than the sum of its proper divisors (2008660049).

12303042451 is an equidigital number, since it uses as much as digits as its factorization.

12303042451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251082513 (or 251082506 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 12303042451 its reverse (15424030321), we get a palindrome (27727072772).

The spelling of 12303042451 in words is "twelve billion, three hundred three million, forty-two thousand, four hundred fifty-one".

Divisors: 1 7 49 251082499 1757577493 12303042451