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232243031 is a prime number
BaseRepresentation
bin11011101011110…
…11111101010111
3121012000011112202
431311323331113
5433423234111
635013435115
75520014246
oct1565737527
9535004482
10232243031
1110a105699
126593ba9b
1339166217
1422bb695d
15155c7b3b
hexdd7bf57

232243031 has 2 divisors, whose sum is σ = 232243032. Its totient is φ = 232243030.

The previous prime is 232243009. The next prime is 232243051. The reversal of 232243031 is 130342232.

It is an a-pointer prime, because the next prime (232243051) can be obtained adding 232243031 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232243031 - 218 = 231980887 is a prime.

It is a super-2 number, since 2×2322430312 = 107873650896133922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 232242994 and 232243012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232243051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116121515 + 116121516.

It is an arithmetic number, because the mean of its divisors is an integer number (116121516).

Almost surely, 2232243031 is an apocalyptic number.

232243031 is a deficient number, since it is larger than the sum of its proper divisors (1).

232243031 is an equidigital number, since it uses as much as digits as its factorization.

232243031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 232243031 is about 15239.5220069397. The cubic root of 232243031 is about 614.6778500965.

Adding to 232243031 its reverse (130342232), we get a palindrome (362585263).

The spelling of 232243031 in words is "two hundred thirty-two million, two hundred forty-three thousand, thirty-one".