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12450211451 = 130715676079
BaseRepresentation
bin10111001100001011…
…10010011001111011
31012010200021021100122
423212011302121323
5200444223231301
65415231123455
7620346023366
oct134605623173
935120237318
1012450211451
115309902157
1224b567358b
131235506832
148617330dd
154cd05181b
hex2e617267b

12450211451 has 8 divisors (see below), whose sum is σ = 12469739520. Its totient is φ = 12430701288.

The previous prime is 12450211421. The next prime is 12450211463. The reversal of 12450211451 is 15411205421.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12450211451 - 26 = 12450211387 is a prime.

It is a super-2 number, since 2×124502114512 (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 12450211451.

It is not an unprimeable number, because it can be changed into a prime (12450211421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2045030 + ... + 2051108.

It is an arithmetic number, because the mean of its divisors is an integer number (1558717440).

Almost surely, 212450211451 is an apocalyptic number.

12450211451 is a deficient number, since it is larger than the sum of its proper divisors (19528069).

12450211451 is a wasteful number, since it uses less digits than its factorization.

12450211451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8953.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 12450211451 its reverse (15411205421), we get a palindrome (27861416872).

The spelling of 12450211451 in words is "twelve billion, four hundred fifty million, two hundred eleven thousand, four hundred fifty-one".

Divisors: 1 1307 1567 6079 2048069 7945253 9525793 12450211451