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18080202202 = 217531770653
BaseRepresentation
bin10000110101101010…
…011111110111011010
31201200001002102202121
4100311222133313122
5244012012432302
612150025251454
71210021116526
oct206552376732
951601072677
1018080202202
117738891577
123607033b8a
131921a319ca
14c37346d86
1570c44be37
hex435a9fdda

18080202202 has 8 divisors (see below), whose sum is σ = 28715615316. Its totient is φ = 8508330432.

The previous prime is 18080202197. The next prime is 18080202247. The reversal of 18080202202 is 20220208081.

It can be written as a sum of positive squares in 2 ways, for example, as 17469173241 + 611028961 = 132171^2 + 24719^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265885293 + ... + 265885360.

Almost surely, 218080202202 is an apocalyptic number.

18080202202 is a deficient number, since it is larger than the sum of its proper divisors (10635413114).

18080202202 is a wasteful number, since it uses less digits than its factorization.

18080202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531770672.

The product of its (nonzero) digits is 1024, while the sum is 25.

The spelling of 18080202202 in words is "eighteen billion, eighty million, two hundred two thousand, two hundred two".

Divisors: 1 2 17 34 531770653 1063541306 9040101101 18080202202