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210000050 = 25213323077
BaseRepresentation
bin11001000010001…
…01100010110010
3112122011002220122
430201011202302
5412230000200
632501010242
75126654021
oct1441054262
9478132818
10210000050
11a85a3167
125a3b3982
1334678bb0
141dc668b8
1513682385
hexc8458b2

210000050 has 24 divisors (see below), whose sum is σ = 420647556. Its totient is φ = 77538240.

The previous prime is 210000047. The next prime is 210000067. The reversal of 210000050 is 50000012.

It can be written as a sum of positive squares in 6 ways, for example, as 15202201 + 194797849 = 3899^2 + 13957^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 209999992 and 210000037.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160889 + ... + 162188.

Almost surely, 2210000050 is an apocalyptic number.

210000050 is an abundant number, since it is smaller than the sum of its proper divisors (210647506).

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

210000050 is a wasteful number, since it uses less digits than its factorization.

210000050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323102 (or 323097 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 8.

The square root of 210000050 is about 14491.3784713532. The cubic root of 210000050 is about 594.3922424503.

Adding to 210000050 its reverse (50000012), we get a palindrome (260000062).

The spelling of 210000050 in words is "two hundred ten million, fifty", and thus it is an aban number.

Divisors: 1 2 5 10 13 25 26 50 65 130 325 650 323077 646154 1615385 3230770 4200001 8076925 8400002 16153850 21000005 42000010 105000025 210000050