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12182002274 = 213468538549
BaseRepresentation
bin10110101100001101…
…01001101001100010
31011102222120211112102
423112012221221202
5144422043033044
65332450330402
7610611211421
oct132606515142
934388524472
1012182002274
115191471682
12243b889a02
1311c1a89b90
14837c772b8
154b472224e
hex2d61a9a62

12182002274 has 8 divisors (see below), whose sum is σ = 19678619100. Its totient is φ = 5622462576.

The previous prime is 12182002253. The next prime is 12182002277. The reversal of 12182002274 is 47220028121.

It can be written as a sum of positive squares in 2 ways, for example, as 12116505625 + 65496649 = 110075^2 + 8093^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12182002277) 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, 234269249 + ... + 234269300.

Almost surely, 212182002274 is an apocalyptic number.

12182002274 is a deficient number, since it is larger than the sum of its proper divisors (7496616826).

12182002274 is a wasteful number, since it uses less digits than its factorization.

12182002274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468538564.

The product of its (nonzero) digits is 3584, while the sum is 29.

The spelling of 12182002274 in words is "twelve billion, one hundred eighty-two million, two thousand, two hundred seventy-four".

Divisors: 1 2 13 26 468538549 937077098 6091001137 12182002274