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12449585208 = 2331972633161
BaseRepresentation
bin10111001100000110…
…11001100000111000
31012010122002110022110
423212003121200320
5200444043211313
65415205452320
7620340504534
oct134603314070
935118073273
1012449585208
1153095146a5
1224b54110a0
131235347788
1486160cbc4
154cce7aec3
hex2e60d9838

12449585208 has 32 divisors (see below), whose sum is σ = 31281964560. Its totient is φ = 4128794880.

The previous prime is 12449585207. The next prime is 12449585209. The reversal of 12449585208 is 80258594421.

It is an interprime number because it is at equal distance from previous prime (12449585207) and next prime (12449585209).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12449585201) 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, 1311853 + ... + 1321308.

Almost surely, 212449585208 is an apocalyptic number.

It is an amenable number.

12449585208 is an abundant number, since it is smaller than the sum of its proper divisors (18832379352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12449585208 is a wasteful number, since it uses less digits than its factorization.

12449585208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2633367 (or 2633363 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 48.

The spelling of 12449585208 in words is "twelve billion, four hundred forty-nine million, five hundred eighty-five thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 12 24 197 394 591 788 1182 1576 2364 4728 2633161 5266322 7899483 10532644 15798966 21065288 31597932 63195864 518732717 1037465434 1556198151 2074930868 3112396302 4149861736 6224792604 12449585208