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12453202430261 = 23952105449499
BaseRepresentation
bin1011010100110111110010…
…1101010000100100110101
31122002111220002101221212022
42311031330231100210311
53113013124310232021
642252531111002525
72423466652060445
oct265157455204465
948074802357768
1012453202430261
113a7141213252a
121491620369445
136c44413aa698
14310a49930125
15168e0a3dc1ab
hexb537cb50935

12453202430261 has 4 divisors (see below), whose sum is σ = 12505307880000. Its totient is φ = 12401096980524.

The previous prime is 12453202430239. The next prime is 12453202430269. The reversal of 12453202430261 is 16203420235421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12453202430261 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 (12453202430269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26052724511 + ... + 26052724988.

It is an arithmetic number, because the mean of its divisors is an integer number (3126326970000).

Almost surely, 212453202430261 is an apocalyptic number.

It is an amenable number.

12453202430261 is a deficient number, since it is larger than the sum of its proper divisors (52105449739).

12453202430261 is an equidigital number, since it uses as much as digits as its factorization.

12453202430261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52105449738.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 12453202430261 its reverse (16203420235421), we get a palindrome (28656622665682).

The spelling of 12453202430261 in words is "twelve trillion, four hundred fifty-three billion, two hundred two million, four hundred thirty thousand, two hundred sixty-one".

Divisors: 1 239 52105449499 12453202430261