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190219 = 223853
BaseRepresentation
bin101110011100001011
3100122221011
4232130023
522041334
64024351
71421401
oct563413
9318834
10190219
1111aa07
12920b7
1368773
144d471
153b564
hex2e70b

190219 has 4 divisors (see below), whose sum is σ = 191296. Its totient is φ = 189144.

The previous prime is 190207. The next prime is 190243. The reversal of 190219 is 912091.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 912091 = 979403.

It is a cyclic number.

It is not a de Polignac number, because 190219 - 211 = 188171 is a prime.

It is a super-2 number, since 2×1902192 = 72366535922, 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 190219.

It is not an unprimeable number, because it can be changed into a prime (190249) 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, 204 + ... + 649.

It is an arithmetic number, because the mean of its divisors is an integer number (47824).

2190219 is an apocalyptic number.

190219 is a deficient number, since it is larger than the sum of its proper divisors (1077).

190219 is an equidigital number, since it uses as much as digits as its factorization.

190219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 190219 is about 436.1410322361. The cubic root of 190219 is about 57.5110501762.

The spelling of 190219 in words is "one hundred ninety thousand, two hundred nineteen".

Divisors: 1 223 853 190219