Search a number
-
+
231201283 is a prime number
BaseRepresentation
bin11011100011111…
…01101000000011
3121010001020112111
431301331220003
5433141420113
634535240151
75505115135
oct1561755003
9533036474
10231201283
11109563a45
1265519057
1338b8ccc1
14229c5055
151546e13d
hexdc7da03

231201283 has 2 divisors, whose sum is σ = 231201284. Its totient is φ = 231201282.

The previous prime is 231201227. The next prime is 231201301. The reversal of 231201283 is 382102132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231201283 - 29 = 231200771 is a prime.

It is not a weakly prime, because it can be changed into another prime (231201203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115600641 + 115600642.

It is an arithmetic number, because the mean of its divisors is an integer number (115600642).

Almost surely, 2231201283 is an apocalyptic number.

231201283 is a deficient number, since it is larger than the sum of its proper divisors (1).

231201283 is an equidigital number, since it uses as much as digits as its factorization.

231201283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 231201283 is about 15205.3044362814. The cubic root of 231201283 is about 613.7574073380.

The spelling of 231201283 in words is "two hundred thirty-one million, two hundred one thousand, two hundred eighty-three".