Search a number
-
+
230161433 = 701328333
BaseRepresentation
bin11011011011111…
…11110000011001
3121001002102010112
431231333300121
5432410131213
634501054105
75463224405
oct1555776031
9531072115
10230161433
11108a13767
12650b7335
13388b78c8
14227d4105
1515315ea8
hexdb7fc19

230161433 has 4 divisors (see below), whose sum is σ = 230490468. Its totient is φ = 229832400.

The previous prime is 230161381. The next prime is 230161447. The reversal of 230161433 is 334161032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 221652544 + 8508889 = 14888^2 + 2917^2 .

It is a cyclic number.

It is not a de Polignac number, because 230161433 - 210 = 230160409 is a prime.

It is a super-2 number, since 2×2301614332 = 105948570481226978, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230161399 and 230161408.

It is not an unprimeable number, because it can be changed into a prime (230161493) 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, 163466 + ... + 164867.

It is an arithmetic number, because the mean of its divisors is an integer number (57622617).

Almost surely, 2230161433 is an apocalyptic number.

It is an amenable number.

230161433 is a deficient number, since it is larger than the sum of its proper divisors (329035).

230161433 is an equidigital number, since it uses as much as digits as its factorization.

230161433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329034.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 230161433 is about 15171.0722429234. The cubic root of 230161433 is about 612.8358800844.

The spelling of 230161433 in words is "two hundred thirty million, one hundred sixty-one thousand, four hundred thirty-three".

Divisors: 1 701 328333 230161433