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500121005 = 561226881
BaseRepresentation
bin11101110011110…
…011110110101101
31021212001210001012
4131303303312231
52011012333010
6121343155005
715251646506
oct3563636655
91255053035
10500121005
1123733a34a
1211b5a5a65
137c7c81b7
144a5c7bad
152dd8e005
hex1dcf3dad

500121005 has 12 divisors (see below), whose sum is σ = 610167636. Its totient is φ = 393523200.

The previous prime is 500120989. The next prime is 500121023.

500121005 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 6 ways, for example, as 127283524 + 372837481 = 11282^2 + 19309^2 .

It is not a de Polignac number, because 500121005 - 24 = 500120989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5165 + ... + 32045.

It is an arithmetic number, because the mean of its divisors is an integer number (50847303).

Almost surely, 2500121005 is an apocalyptic number.

It is an amenable number.

500121005 is a deficient number, since it is larger than the sum of its proper divisors (110046631).

500121005 is an equidigital number, since it uses as much as digits as its factorization.

500121005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27008 (or 26947 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 500121005 is about 22363.3853653690. The cubic root of 500121005 is about 793.7645486411.

The spelling of 500121005 in words is "five hundred million, one hundred twenty-one thousand, five".

Divisors: 1 5 61 305 3721 18605 26881 134405 1639741 8198705 100024201 500121005