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230344031 is a prime number
BaseRepresentation
bin11011011101011…
…00010101011111
3121001102200121102
431232230111133
5432432002111
634505023315
75464614641
oct1556542537
9531380542
10230344031
11109028975
1265184b3b
133894ca58
1422840891
151535013b
hexdbac55f

230344031 has 2 divisors, whose sum is σ = 230344032. Its totient is φ = 230344030.

The previous prime is 230344019. The next prime is 230344061. The reversal of 230344031 is 130443032.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230344031 is a prime.

It is a super-2 number, since 2×2303440312 = 106116745234657922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 230343994 and 230344012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230344061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115172015 + 115172016.

It is an arithmetic number, because the mean of its divisors is an integer number (115172016).

Almost surely, 2230344031 is an apocalyptic number.

230344031 is a deficient number, since it is larger than the sum of its proper divisors (1).

230344031 is an equidigital number, since it uses as much as digits as its factorization.

230344031 is an evil number, because the sum of its binary digits is even.

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

The square root of 230344031 is about 15177.0890160136. The cubic root of 230344031 is about 612.9979011857.

Adding to 230344031 its reverse (130443032), we get a palindrome (360787063).

Subtracting from 230344031 its reverse (130443032), we obtain a palindrome (99900999).

The spelling of 230344031 in words is "two hundred thirty million, three hundred forty-four thousand, thirty-one".