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10205203207 = 17775977369
BaseRepresentation
bin10011000000100011…
…10000101100000111
3222100012220001000011
421200101300230013
5131400013000312
64404352531051
7510615540013
oct114021605407
928305801004
1010205203207
114367631241
121b89850a87
13c68376ba4
146cb4db543
153eade3da7
hex260470b07

10205203207 has 8 divisors (see below), whose sum is σ = 10807041600. Its totient is φ = 9603535104.

The previous prime is 10205203187. The next prime is 10205203213. The reversal of 10205203207 is 70230250201.

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

It is a cyclic number.

It is not a de Polignac number, because 10205203207 - 27 = 10205203079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10205203607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93219 + ... + 170587.

It is an arithmetic number, because the mean of its divisors is an integer number (1350880200).

Almost surely, 210205203207 is an apocalyptic number.

10205203207 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

10205203207 is a deficient number, since it is larger than the sum of its proper divisors (601838393).

10205203207 is an equidigital number, since it uses as much as digits as its factorization.

10205203207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85145.

The product of its (nonzero) digits is 840, while the sum is 22.

Adding to 10205203207 its reverse (70230250201), we get a palindrome (80435453408).

The spelling of 10205203207 in words is "ten billion, two hundred five million, two hundred three thousand, two hundred seven".

Divisors: 1 17 7759 77369 131903 1315273 600306071 10205203207