[go: up one dir, main page]

Search a number
-
+
190469 = 792411
BaseRepresentation
bin101110100000000101
3100200021102
4232200011
522043334
64025445
71422206
oct564005
9320242
10190469
11120114
1292285
1368906
144d5ad
153b67e
hex2e805

190469 has 4 divisors (see below), whose sum is σ = 192960. Its totient is φ = 187980.

The previous prime is 190409. The next prime is 190471. The reversal of 190469 is 964091.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-190469 is a prime.

It is a super-2 number, since 2×1904692 = 72556879922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1127 + ... + 1284.

It is an arithmetic number, because the mean of its divisors is an integer number (48240).

2190469 is an apocalyptic number.

It is an amenable number.

190469 is a deficient number, since it is larger than the sum of its proper divisors (2491).

190469 is an equidigital number, since it uses as much as digits as its factorization.

190469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 190469 is about 436.4275426689. The cubic root of 190469 is about 57.5362342506.

The spelling of 190469 in words is "one hundred ninety thousand, four hundred sixty-nine".

Divisors: 1 79 2411 190469