Search a number
-
+
189250429 = 712665499
BaseRepresentation
bin10110100011110…
…11101101111101
3111012002220210011
423101323231331
5341422003204
630440143221
74455413344
oct1321735575
9435086704
10189250429
1197910715
1253467b11
1330292504
141b1c4b5b
1511934304
hexb47bb7d

189250429 has 4 divisors (see below), whose sum is σ = 191916000. Its totient is φ = 186584860.

The previous prime is 189250427. The next prime is 189250441. The reversal of 189250429 is 924052981.

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 189250429 - 21 = 189250427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189250391 and 189250400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189250427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1332679 + ... + 1332820.

It is an arithmetic number, because the mean of its divisors is an integer number (47979000).

Almost surely, 2189250429 is an apocalyptic number.

It is an amenable number.

189250429 is a deficient number, since it is larger than the sum of its proper divisors (2665571).

189250429 is an equidigital number, since it uses as much as digits as its factorization.

189250429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665570.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 189250429 is about 13756.8320844590. The cubic root of 189250429 is about 574.1327103944.

The spelling of 189250429 in words is "one hundred eighty-nine million, two hundred fifty thousand, four hundred twenty-nine".

Divisors: 1 71 2665499 189250429