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189469 = 727067
BaseRepresentation
bin101110010000011101
3100121220101
4232100131
522030334
64021101
71416250
oct562035
9317811
10189469
1111a395
1291791
1368317
144d097
153b214
hex2e41d

189469 has 4 divisors (see below), whose sum is σ = 216544. Its totient is φ = 162396.

The previous prime is 189467. The next prime is 189473. The reversal of 189469 is 964981.

189469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 189469 - 21 = 189467 is a prime.

It is a super-2 number, since 2×1894692 = 71797003922, 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 (189463) 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, 13527 + ... + 13540.

It is an arithmetic number, because the mean of its divisors is an integer number (54136).

2189469 is an apocalyptic number.

It is an amenable number.

189469 is a deficient number, since it is larger than the sum of its proper divisors (27075).

189469 is an equidigital number, since it uses as much as digits as its factorization.

189469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27074.

The product of its digits is 15552, while the sum is 37.

The square root of 189469 is about 435.2803694172. The cubic root of 189469 is about 57.4353653058.

The spelling of 189469 in words is "one hundred eighty-nine thousand, four hundred sixty-nine".

Divisors: 1 7 27067 189469