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499974930 = 235572131719
BaseRepresentation
bin11101110011010…
…000001100010010
31021211210100200000
4131303100030102
52010443144210
6121340110430
715250500600
oct3563201422
91254710600
10499974930
1123724a624
1211b535416
137c776870
144a58a870
152dd60ac0
hex1dcd0312

499974930 has 576 divisors, whose sum is σ = 1882258560. Its totient is φ = 94058496.

The previous prime is 499974929. The next prime is 499974973. The reversal of 499974930 is 39479994.

It is a harmonic number, since the harmonic mean of its divisors is an integer.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 287 ways as a sum of consecutive naturals, for example, 26314461 + ... + 26314479.

It is an arithmetic number, because the mean of its divisors is an integer number (3267810).

Almost surely, 2499974930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499974930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (941129280).

499974930 is an abundant number, since it is smaller than the sum of its proper divisors (1382283630).

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

499974930 is a wasteful number, since it uses less digits than its factorization.

499974930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The square root of 499974930 is about 22360.1191857289. The cubic root of 499974930 is about 793.6872603809.

The spelling of 499974930 in words is "four hundred ninety-nine million, nine hundred seventy-four thousand, nine hundred thirty".