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499999975 = 5219999999
BaseRepresentation
bin11101110011010…
…110010011100111
31021211211122000121
4131303112103213
52010444444400
6121340422411
715250633606
oct3563262347
91254748017
10499999975
11237267422
1211b547a07
137c785097
144a595a3d
152dd6821a
hex1dcd64e7

499999975 has 6 divisors (see below), whose sum is σ = 620000000. Its totient is φ = 399999960.

The previous prime is 499999931. The next prime is 499999993. The reversal of 499999975 is 579999994.

It is not a de Polignac number, because 499999975 - 27 = 499999847 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9999975 + ... + 10000024.

Almost surely, 2499999975 is an apocalyptic number.

499999975 is a deficient number, since it is larger than the sum of its proper divisors (120000025).

499999975 is a wasteful number, since it uses less digits than its factorization.

499999975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20000009 (or 20000004 counting only the distinct ones).

The product of its digits is 74401740, while the sum is 70.

The square root of 499999975 is about 22360.6792159809. The cubic root of 499999975 is about 793.7005127558.

The spelling of 499999975 in words is "four hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred seventy-five".

Divisors: 1 5 25 19999999 99999995 499999975