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500050000 = 245573137
BaseRepresentation
bin11101110011100…
…010100001010000
31021211221011122101
4131303202201100
52011003100000
6121341450144
715251232502
oct3563424120
91254834571
10500050000
112372a0a6a
1211b570954
137c7a1a98
144a5a9d72
152dd77e6a
hex1dce2850

500050000 has 120 divisors (see below), whose sum is σ = 1236530232. Its totient is φ = 195840000.

The previous prime is 500049989. The next prime is 500050003. The reversal of 500050000 is 50005.

It can be written as a sum of positive squares in 12 ways, for example, as 493372944 + 6677056 = 22212^2 + 2584^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500050003) 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 23 ways as a sum of consecutive naturals, for example, 3649932 + ... + 3650068.

Almost surely, 2500050000 is an apocalyptic number.

500050000 is a gapful number since it is divisible by the number (50) 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 500050000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (618265116).

500050000 is an abundant number, since it is smaller than the sum of its proper divisors (736480232).

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

500050000 is an equidigital number, since it uses as much as digits as its factorization.

500050000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 10.

The square root of 500050000 is about 22361.7977810372. The cubic root of 500050000 is about 793.7269817865.

500050000 divided by its sum of digits (10) gives a triangular number (50005000 = T10000).

Multiplying 500050000 by its reverse (50005), we get a square (25005000250000 = 50005002).

500050000 divided by its reverse (50005) gives a 4-th power (10000 = 104).

The spelling of 500050000 in words is "five hundred million, fifty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 73 80 100 125 137 146 200 250 274 292 365 400 500 548 584 625 685 730 1000 1096 1168 1250 1370 1460 1825 2000 2192 2500 2740 2920 3125 3425 3650 5000 5480 5840 6250 6850 7300 9125 10000 10001 10960 12500 13700 14600 17125 18250 20002 25000 27400 29200 34250 36500 40004 45625 50000 50005 54800 68500 73000 80008 85625 91250 100010 137000 146000 160016 171250 182500 200020 228125 250025 274000 342500 365000 400040 428125 456250 500050 685000 730000 800080 856250 912500 1000100 1250125 1370000 1712500 1825000 2000200 2500250 3425000 3650000 4000400 5000500 6250625 6850000 10001000 12501250 20002000 25002500 31253125 50005000 62506250 100010000 125012500 250025000 500050000