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499982440 = 23512499561
BaseRepresentation
bin11101110011010…
…010000001101000
31021211210201222011
4131303102001220
52010443414230
6121340205304
715250531516
oct3563220150
91254721864
10499982440
11237255231
1211b539834
137c77a0c9
144a58d4b6
152dd62e2a
hex1dcd2068

499982440 has 16 divisors (see below), whose sum is σ = 1124960580. Its totient is φ = 199992960.

The previous prime is 499982437. The next prime is 499982447. The reversal of 499982440 is 44289994.

It can be written as a sum of positive squares in 2 ways, for example, as 497914596 + 2067844 = 22314^2 + 1438^2 .

It is not an unprimeable number, because it can be changed into a prime (499982447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6249741 + ... + 6249820.

Almost surely, 2499982440 is an apocalyptic number.

499982440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

499982440 is an abundant number, since it is smaller than the sum of its proper divisors (624978140).

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

499982440 is a wasteful number, since it uses less digits than its factorization.

499982440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12499572 (or 12499568 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 499982440 is about 22360.2871180135. The cubic root of 499982440 is about 793.6912342878.

The spelling of 499982440 in words is "four hundred ninety-nine million, nine hundred eighty-two thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 12499561 24999122 49998244 62497805 99996488 124995610 249991220 499982440