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10010000018 = 25005000009
BaseRepresentation
bin10010101001010010…
…00111101010010010
3221211121120200120102
421110221013222102
5131000030000033
64333141012402
7503025411344
oct112451075222
927747520512
1010010000018
114277425197
121b343b4102
13c36aac045
146ad607294
153d8bd5de8
hex254a47a92

10010000018 has 4 divisors (see below), whose sum is σ = 15015000030. Its totient is φ = 5005000008.

The previous prime is 10009999997. The next prime is 10010000029. The reversal of 10010000018 is 81000001001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81000001001 = 250332361167.

It can be written as a sum of positive squares in only one way, i.e., 9392129569 + 617870449 = 96913^2 + 24857^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10009999963 and 10010000008.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2502500003 + ... + 2502500006.

Almost surely, 210010000018 is an apocalyptic number.

10010000018 is a deficient number, since it is larger than the sum of its proper divisors (5005000012).

10010000018 is an equidigital number, since it uses as much as digits as its factorization.

10010000018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005000011.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10010000018 its reverse (81000001001), we get a palindrome (91010001019).

The spelling of 10010000018 in words is "ten billion, ten million, eighteen", and thus it is an aban number and an uban number.

Divisors: 1 2 5005000009 10010000018