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12289357088 = 25195972
BaseRepresentation
bin10110111001000000…
…01011010100100000
31011201110121000122122
423130200023110200
5200132033411323
65351243323412
7613353545261
oct133440132440
934643530578
1012289357088
115237026968
12246b820568
13120b0a7238
14848220968
154bdd7aec8
hex2dc80b520

12289357088 has 18 divisors (see below), whose sum is σ = 24195906441. Its totient is φ = 6144364992.

The previous prime is 12289357081. The next prime is 12289357117. The reversal of 12289357088 is 88075398221.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 12123771664 + 165585424 = 110108^2 + 12868^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=78388.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12289357081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 617306 + ... + 636902.

Almost surely, 212289357088 is an apocalyptic number.

It is an amenable number.

12289357088 is a deficient number, since it is larger than the sum of its proper divisors (11906549353).

12289357088 is an frugal number, since it uses more digits than its factorization.

12289357088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39204 (or 19599 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 12289357088 in words is "twelve billion, two hundred eighty-nine million, three hundred fifty-seven thousand, eighty-eight".

Divisors: 1 2 4 8 16 32 19597 39194 78388 156776 313552 627104 384042409 768084818 1536169636 3072339272 6144678544 12289357088