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16685018682 = 2319193758341
BaseRepresentation
bin11111000101000000…
…10010111000111010
31121001210210202202220
433202200102320322
5233132331044212
611355345504510
71130320214223
oct174240227072
947053722686
1016685018682
117092292542
123297942136
13175b97b627
14b43d2a24a
15679c0938c
hex3e2812e3a

16685018682 has 32 divisors (see below), whose sum is σ = 35308403520. Its totient is φ = 5241646080.

The previous prime is 16685018681. The next prime is 16685018699. The reversal of 16685018682 is 28681058661.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16685018681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357169 + ... + 401172.

It is an arithmetic number, because the mean of its divisors is an integer number (1103387610).

Almost surely, 216685018682 is an apocalyptic number.

16685018682 is an abundant number, since it is smaller than the sum of its proper divisors (18623384838).

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

16685018682 is a wasteful number, since it uses less digits than its factorization.

16685018682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758558.

The product of its (nonzero) digits is 1105920, while the sum is 51.

The spelling of 16685018682 in words is "sixteen billion, six hundred eighty-five million, eighteen thousand, six hundred eighty-two".

Divisors: 1 2 3 6 19 38 57 114 193 386 579 1158 3667 7334 11001 22002 758341 1516682 2275023 4550046 14408479 28816958 43225437 86450874 146359813 292719626 439079439 878158878 2780836447 5561672894 8342509341 16685018682