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500000073 = 3179803923
BaseRepresentation
bin11101110011010…
…110010101001001
31021211211122011020
4131303112111021
52011000000243
6121340423053
715250634106
oct3563262511
91254748136
10500000073
11237267501
1211b547a89
137c785141
144a595aad
152dd68283
hex1dcd6549

500000073 has 8 divisors (see below), whose sum is σ = 705882528. Its totient is φ = 313725504.

The previous prime is 500000071. The next prime is 500000077. The reversal of 500000073 is 370000005.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 500000073 - 21 = 500000071 is a prime.

500000073 is a modest number, since divided by 73 gives 5 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 499999998 and 500000061.

It is not an unprimeable number, because it can be changed into a prime (500000071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4901911 + ... + 4902012.

It is an arithmetic number, because the mean of its divisors is an integer number (88235316).

Almost surely, 2500000073 is an apocalyptic number.

It is an amenable number.

500000073 is a deficient number, since it is larger than the sum of its proper divisors (205882455).

500000073 is a wasteful number, since it uses less digits than its factorization.

500000073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9803943.

The product of its (nonzero) digits is 105, while the sum is 15.

The square root of 500000073 is about 22360.6814073275. The cubic root of 500000073 is about 793.7005646109.

Adding to 500000073 its reverse (370000005), we get a palindrome (870000078).

The spelling of 500000073 in words is "five hundred million, seventy-three", and thus it is an aban number.

Divisors: 1 3 17 51 9803923 29411769 166666691 500000073