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10185213 = 33395071
BaseRepresentation
bin100110110110…
…100111111101
3201011110111010
4212312213331
510101411323
61002145433
7152400333
oct46664775
921143433
1010185213
115827335
1234b2279
132157c6c
1414d1b53
15d62c93
hex9b69fd

10185213 has 4 divisors (see below), whose sum is σ = 13580288. Its totient is φ = 6790140.

The previous prime is 10185209. The next prime is 10185257. The reversal of 10185213 is 31258101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 10185213 - 22 = 10185209 is a prime.

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 10185213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10185283) 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, 1697533 + ... + 1697538.

It is an arithmetic number, because the mean of its divisors is an integer number (3395072).

Almost surely, 210185213 is an apocalyptic number.

It is an amenable number.

10185213 is a deficient number, since it is larger than the sum of its proper divisors (3395075).

10185213 is an equidigital number, since it uses as much as digits as its factorization.

10185213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395074.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 10185213 is about 3191.4280502621. The cubic root of 10185213 is about 216.7654384638.

The spelling of 10185213 in words is "ten million, one hundred eighty-five thousand, two hundred thirteen".

Divisors: 1 3 3395071 10185213