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20830010 = 252083001
BaseRepresentation
bin100111101110…
…1011100111010
31110012021101212
41033131130322
520313030020
62022243122
7342023615
oct117353472
943167355
1020830010
1110837993
126b864a2
134414166
142aa317c
151c66cc5
hex13dd73a

20830010 has 8 divisors (see below), whose sum is σ = 37494036. Its totient is φ = 8332000.

The previous prime is 20829989. The next prime is 20830013. The reversal of 20830010 is 1003802.

It can be written as a sum of positive squares in 2 ways, for example, as 20313049 + 516961 = 4507^2 + 719^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20830013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1041491 + ... + 1041510.

Almost surely, 220830010 is an apocalyptic number.

20830010 is a deficient number, since it is larger than the sum of its proper divisors (16664026).

20830010 is a wasteful number, since it uses less digits than its factorization.

20830010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083008.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 20830010 is about 4563.9905784302. The cubic root of 20830010 is about 275.1459720900.

Adding to 20830010 its reverse (1003802), we get a palindrome (21833812).

The spelling of 20830010 in words is "twenty million, eight hundred thirty thousand, ten".

Divisors: 1 2 5 10 2083001 4166002 10415005 20830010