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10205219 = 17600307
BaseRepresentation
bin100110111011…
…100000100011
3201012110221002
4212323200203
510103031334
61002422215
7152512553
oct46734043
921173832
1010205219
115840372
12350196b
1321640bb
1414d9163
15d68b7e
hex9bb823

10205219 has 4 divisors (see below), whose sum is σ = 10805544. Its totient is φ = 9604896.

The previous prime is 10205207. The next prime is 10205227. The reversal of 10205219 is 91250201.

10205219 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10205219 - 212 = 10201123 is a prime.

It is a super-2 number, since 2×102052192 = 208292989675922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10205219.

It is not an unprimeable number, because it can be changed into a prime (10205119) 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, 300137 + ... + 300170.

It is an arithmetic number, because the mean of its divisors is an integer number (2701386).

Almost surely, 210205219 is an apocalyptic number.

10205219 is a deficient number, since it is larger than the sum of its proper divisors (600325).

10205219 is an equidigital number, since it uses as much as digits as its factorization.

10205219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600324.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 10205219 is about 3194.5608461884. The cubic root of 10205219 is about 216.9072706508.

The spelling of 10205219 in words is "ten million, two hundred five thousand, two hundred nineteen".

Divisors: 1 17 600307 10205219