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323040231 = 343988151
BaseRepresentation
bin10011010000010…
…011001111100111
3211111212010220000
4103100103033213
51130144241411
652015512343
711001540153
oct2320231747
9744763800
10323040231
111563909a8
12902286b3
1351c06c87
1430c90063
151d560956
hex134133e7

323040231 has 10 divisors (see below), whose sum is σ = 482566392. Its totient is φ = 215360100.

The previous prime is 323040203. The next prime is 323040317. The reversal of 323040231 is 132040323.

323040231 is a `hidden beast` number, since 3 + 230 + 402 + 31 = 666.

It is not a de Polignac number, because 323040231 - 25 = 323040199 is a prime.

It is a super-2 number, since 2×3230402312 = 208709981689066722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323040331) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1993995 + ... + 1994156.

Almost surely, 2323040231 is an apocalyptic number.

323040231 is a deficient number, since it is larger than the sum of its proper divisors (159526161).

323040231 is an equidigital number, since it uses as much as digits as its factorization.

323040231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3988163 (or 3988154 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 323040231 is about 17973.3199771216. The cubic root of 323040231 is about 686.1496888227.

Adding to 323040231 its reverse (132040323), we get a palindrome (455080554).

The spelling of 323040231 in words is "three hundred twenty-three million, forty thousand, two hundred thirty-one".

Divisors: 1 3 9 27 81 3988151 11964453 35893359 107680077 323040231