Search a number
-
+
230032231 = 11131608617
BaseRepresentation
bin11011011011000…
…00001101100111
3121000211211220021
431231200031213
5432342012411
634454220011
75462145622
oct1555401547
9530754807
10230032231
11108935690
1265054607
1338870b60
142279cdb9
15152dca71
hexdb60367

230032231 has 8 divisors (see below), whose sum is σ = 270247824. Its totient is φ = 193033920.

The previous prime is 230032217. The next prime is 230032267. The reversal of 230032231 is 132230032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 230032231 - 221 = 227935079 is a prime.

It is a super-2 number, since 2×2300322312 = 105829654597674722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230032931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804166 + ... + 804451.

It is an arithmetic number, because the mean of its divisors is an integer number (33780978).

Almost surely, 2230032231 is an apocalyptic number.

230032231 is a deficient number, since it is larger than the sum of its proper divisors (40215593).

230032231 is a wasteful number, since it uses less digits than its factorization.

230032231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608641.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 230032231 is about 15166.8134754799. The cubic root of 230032231 is about 612.7211860327.

Adding to 230032231 its reverse (132230032), we get a palindrome (362262263).

The spelling of 230032231 in words is "two hundred thirty million, thirty-two thousand, two hundred thirty-one".

Divisors: 1 11 13 143 1608617 17694787 20912021 230032231