Search a number
-
+
189580513 = 238242631
BaseRepresentation
bin10110100110011…
…00010011100001
3111012201200120111
423103030103201
5342013034023
630451211321
74461256603
oct1323142341
9435650514
10189580513
1198016711
12535a6b41
1330379825
141b26d173
151199c00d
hexb4cc4e1

189580513 has 4 divisors (see below), whose sum is σ = 197823168. Its totient is φ = 181337860.

The previous prime is 189580477. The next prime is 189580529. The reversal of 189580513 is 315085981.

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-189580513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189580553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4121293 + ... + 4121338.

It is an arithmetic number, because the mean of its divisors is an integer number (49455792).

Almost surely, 2189580513 is an apocalyptic number.

It is an amenable number.

189580513 is a deficient number, since it is larger than the sum of its proper divisors (8242655).

189580513 is an equidigital number, since it uses as much as digits as its factorization.

189580513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8242654.

The product of its (nonzero) digits is 43200, while the sum is 40.

The square root of 189580513 is about 13768.8239512313. The cubic root of 189580513 is about 574.4663106036.

The spelling of 189580513 in words is "one hundred eighty-nine million, five hundred eighty thousand, five hundred thirteen".

Divisors: 1 23 8242631 189580513