Search a number
-
+
9380231 = 71340033
BaseRepresentation
bin100011110010…
…000110000111
3122122120020222
4203302012013
54400131411
6533014555
7142505420
oct43620607
918576228
109380231
115327563
12318445b
131c35743
141362647
15c544db
hex8f2187

9380231 has 4 divisors (see below), whose sum is σ = 10720272. Its totient is φ = 8040192.

The previous prime is 9380227. The next prime is 9380237. The reversal of 9380231 is 1320839.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1320839 = 13101603.

It is a cyclic number.

It is not a de Polignac number, because 9380231 - 22 = 9380227 is a prime.

It is a super-2 number, since 2×93802312 = 175977467226722, 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 9380231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9380237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670010 + ... + 670023.

It is an arithmetic number, because the mean of its divisors is an integer number (2680068).

Almost surely, 29380231 is an apocalyptic number.

9380231 is a deficient number, since it is larger than the sum of its proper divisors (1340041).

9380231 is a wasteful number, since it uses less digits than its factorization.

9380231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340040.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 9380231 is about 3062.7162780774. The cubic root of 9380231 is about 210.8973767782.

The spelling of 9380231 in words is "nine million, three hundred eighty thousand, two hundred thirty-one".

Divisors: 1 7 1340033 9380231