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12402453313 = 72679170647
BaseRepresentation
bin10111000110011111…
…00110101101000001
31012000100101220111201
423203033212231001
5200400012001223
65410403341201
7616226054005
oct134317465501
935010356451
1012402453313
115294952818
1224a1681801
131228654993
14859260705
154c8c6aead
hex2e33e6b41

12402453313 has 4 divisors (see below), whose sum is σ = 12402696640. Its totient is φ = 12402209988.

The previous prime is 12402453293. The next prime is 12402453341. The reversal of 12402453313 is 31335420421.

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 not a de Polignac number, because 12402453313 - 29 = 12402452801 is a prime.

It is a super-2 number, since 2×124024533132 (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 (12402454313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12645 + ... + 158002.

It is an arithmetic number, because the mean of its divisors is an integer number (3100674160).

Almost surely, 212402453313 is an apocalyptic number.

It is an amenable number.

12402453313 is a deficient number, since it is larger than the sum of its proper divisors (243327).

12402453313 is an equidigital number, since it uses as much as digits as its factorization.

12402453313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243326.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 12402453313 its reverse (31335420421), we get a palindrome (43737873734).

The spelling of 12402453313 in words is "twelve billion, four hundred two million, four hundred fifty-three thousand, three hundred thirteen".

Divisors: 1 72679 170647 12402453313