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12469852631689 = 56959221370061
BaseRepresentation
bin1011010101110101110100…
…1000101111001010001001
31122011002212110200211100021
42311131131020233022021
53113301224233203224
642304323214340441
72424626400333655
oct265353510571211
948132773624307
1012469852631689
113a784867a4282
1214948a84ba721
136c5b95a8848b
14311788d95a65
1516958201a1e4
hexb575d22f289

12469852631689 has 8 divisors (see below), whose sum is σ = 12492012705480. Its totient is φ = 12447693417600.

The previous prime is 12469852631681. The next prime is 12469852631699. The reversal of 12469852631689 is 98613625896421.

It can be written as a sum of positive squares in 4 ways, for example, as 167717278089 + 12302135353600 = 409533^2 + 3507440^2 .

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 12469852631689 - 23 = 12469852631681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12469852631681) 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 7 ways as a sum of consecutive naturals, for example, 33511719 + ... + 33881779.

It is an arithmetic number, because the mean of its divisors is an integer number (1561501588185).

Almost surely, 212469852631689 is an apocalyptic number.

It is an amenable number.

12469852631689 is a deficient number, since it is larger than the sum of its proper divisors (22160073791).

12469852631689 is an equidigital number, since it uses as much as digits as its factorization.

12469852631689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429851.

The product of its digits is 268738560, while the sum is 70.

The spelling of 12469852631689 in words is "twelve trillion, four hundred sixty-nine billion, eight hundred fifty-two million, six hundred thirty-one thousand, six hundred eighty-nine".

Divisors: 1 569 59221 370061 33696749 210564709 21915382481 12469852631689