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499999345 = 51931716603
BaseRepresentation
bin11101110011010…
…110001001110001
31021211211121011021
4131303112021301
52010444434340
6121340415441
715250632016
oct3563261161
91254747137
10499999345
112372669aa
1211b547581
137c784a01
144a59570d
152dd67e4a
hex1dcd6271

499999345 has 16 divisors (see below), whose sum is σ = 633608640. Its totient is φ = 377728704.

The previous prime is 499999343. The next prime is 499999351. The reversal of 499999345 is 543999994.

It is a cyclic number.

It is not a de Polignac number, because 499999345 - 21 = 499999343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (499999343) 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, 21814 + ... + 38416.

It is an arithmetic number, because the mean of its divisors is an integer number (39600540).

Almost surely, 2499999345 is an apocalyptic number.

It is an amenable number.

499999345 is a deficient number, since it is larger than the sum of its proper divisors (133609295).

499999345 is a wasteful number, since it uses less digits than its factorization.

499999345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16944.

The product of its digits is 14171760, while the sum is 61.

The square root of 499999345 is about 22360.6651287478. The cubic root of 499999345 is about 793.7001794014.

The spelling of 499999345 in words is "four hundred ninety-nine million, nine hundred ninety-nine thousand, three hundred forty-five".

Divisors: 1 5 19 95 317 1585 6023 16603 30115 83015 315457 1577285 5263151 26315755 99999869 499999345