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12490009239 = 313183315811
BaseRepresentation
bin10111010000111011…
…00110101010010111
31012020110011012122210
423220131212222113
5201034420243424
65423212124503
7621341220051
oct135035465227
935213135583
1012490009239
11532a314894
122506a66733
13124082c316
14866b328d1
154d17b3729
hex2e8766a97

12490009239 has 8 divisors (see below), whose sum is σ = 16654661632. Its totient is φ = 8326014840.

The previous prime is 12490009199. The next prime is 12490009253. The reversal of 12490009239 is 93290009421.

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

It is not a de Polignac number, because 12490009239 - 219 = 12489484951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12490009197 and 12490009206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12490049239) 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, 118357 + ... + 197454.

It is an arithmetic number, because the mean of its divisors is an integer number (2081832704).

Almost surely, 212490009239 is an apocalyptic number.

12490009239 is a deficient number, since it is larger than the sum of its proper divisors (4164652393).

12490009239 is a wasteful number, since it uses less digits than its factorization.

12490009239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328997.

The product of its (nonzero) digits is 34992, while the sum is 39.

The spelling of 12490009239 in words is "twelve billion, four hundred ninety million, nine thousand, two hundred thirty-nine".

Divisors: 1 3 13183 39549 315811 947433 4163336413 12490009239