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499978601 is a prime number
BaseRepresentation
bin11101110011010…
…001000101101001
31021211210112200222
4131303101011221
52010443303401
6121340135425
715250514363
oct3563210551
91254715628
10499978601
11237252361
1211b537575
137c778435
144a58bd33
152dd61c1b
hex1dcd1169

499978601 has 2 divisors, whose sum is σ = 499978602. Its totient is φ = 499978600.

The previous prime is 499978561. The next prime is 499978607. The reversal of 499978601 is 106879994.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 286117225 + 213861376 = 16915^2 + 14624^2 .

It is a cyclic number.

It is not a de Polignac number, because 499978601 - 26 = 499978537 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (499978607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249989300 + 249989301.

It is an arithmetic number, because the mean of its divisors is an integer number (249989301).

Almost surely, 2499978601 is an apocalyptic number.

It is an amenable number.

499978601 is a deficient number, since it is larger than the sum of its proper divisors (1).

499978601 is an equidigital number, since it uses as much as digits as its factorization.

499978601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 499978601 is about 22360.2012736916. The cubic root of 499978601 is about 793.6892028909.

The spelling of 499978601 in words is "four hundred ninety-nine million, nine hundred seventy-eight thousand, six hundred one".