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BaseRepresentation
bin11101110011010…
…110010011100000
31021211211122000100
4131303112103200
52010444444333
6121340422400
715250633566
oct3563262340
91254748010
10499999968
11237267416
1211b547a00
137c785090
144a595a36
152dd68213
hex1dcd64e0

499999968 has 144 divisors (see below), whose sum is σ = 1550661840. Its totient is φ = 151898112.

The previous prime is 499999931. The next prime is 499999993. The reversal of 499999968 is 869999994.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 499999896 and 499999905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 309948 + ... + 311556.

It is an arithmetic number, because the mean of its divisors is an integer number (10768485).

Almost surely, 2499999968 is an apocalyptic number.

499999968 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499999968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (775330920).

499999968 is an abundant number, since it is smaller than the sum of its proper divisors (1050661872).

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

499999968 is a wasteful number, since it uses less digits than its factorization.

499999968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721 (or 1710 counting only the distinct ones).

The product of its digits is 102036672, while the sum is 72.

The square root of 499999968 is about 22360.6790594561. The cubic root of 499999968 is about 793.7005090518.

The spelling of 499999968 in words is "four hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred sixty-eight".