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12247886842 = 219132062531
BaseRepresentation
bin10110110100000011…
…11110101111111010
31011121120120010011121
423122001332233322
5200040424334332
65343202415454
7612341214622
oct133201765772
934546503147
1012247886842
115215681734
12245996158a
131202617429
14842907882
154ba3d8797
hex2da07ebfa

12247886842 has 8 divisors (see below), whose sum is σ = 18468018432. Its totient is φ = 6091880700.

The previous prime is 12247886821. The next prime is 12247886843. The reversal of 12247886842 is 24868874221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12247886842.

It is not an unprimeable number, because it can be changed into a prime (12247886843) 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, 16030884 + ... + 16031647.

It is an arithmetic number, because the mean of its divisors is an integer number (2308502304).

Almost surely, 212247886842 is an apocalyptic number.

12247886842 is a deficient number, since it is larger than the sum of its proper divisors (6220131590).

12247886842 is a wasteful number, since it uses less digits than its factorization.

12247886842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32062724.

The product of its digits is 2752512, while the sum is 52.

The spelling of 12247886842 in words is "twelve billion, two hundred forty-seven million, eight hundred eighty-six thousand, eight hundred forty-two".

Divisors: 1 2 191 382 32062531 64125062 6123943421 12247886842