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12440024213 = 59922679161
BaseRepresentation
bin10111001010111101…
…11011010010010101
31012002222002201002112
423211132323102111
5200434121233323
65414224520405
7620163314111
oct134536732225
935088081075
1012440024213
115304084351
1224b2180105
13123337a996
14860240741
154cc1dd178
hex2e57bb495

12440024213 has 8 divisors (see below), whose sum is σ = 12467649600. Its totient is φ = 12412422880.

The previous prime is 12440024197. The next prime is 12440024231. The reversal of 12440024213 is 31242004421.

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 12440024213 - 24 = 12440024197 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 (12440021213) 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, 1353353 + ... + 1362513.

It is an arithmetic number, because the mean of its divisors is an integer number (1558456200).

Almost surely, 212440024213 is an apocalyptic number.

It is an amenable number.

12440024213 is a deficient number, since it is larger than the sum of its proper divisors (27625387).

12440024213 is an equidigital number, since it uses as much as digits as its factorization.

12440024213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12027.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12440024213 its reverse (31242004421), we get a palindrome (43682028634).

The spelling of 12440024213 in words is "twelve billion, four hundred forty million, twenty-four thousand, two hundred thirteen".

Divisors: 1 599 2267 9161 1357933 5487439 20767987 12440024213