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228031043 is a prime number
BaseRepresentation
bin11011001011101…
…11101001000011
3120220002011210012
431211313221003
5431333443133
634343255135
75436142352
oct1545675103
9526064705
10228031043
11107799109
126444a4ab
1338320016
14223db999
1515044b48
hexd977a43

228031043 has 2 divisors, whose sum is σ = 228031044. Its totient is φ = 228031042.

The previous prime is 228031007. The next prime is 228031057. The reversal of 228031043 is 340130822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228031043 - 220 = 226982467 is a prime.

It is not a weakly prime, because it can be changed into another prime (228031343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114015521 + 114015522.

It is an arithmetic number, because the mean of its divisors is an integer number (114015522).

Almost surely, 2228031043 is an apocalyptic number.

228031043 is a deficient number, since it is larger than the sum of its proper divisors (1).

228031043 is an equidigital number, since it uses as much as digits as its factorization.

228031043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 228031043 is about 15100.6967720036. The cubic root of 228031043 is about 610.9391990843.

Adding to 228031043 its reverse (340130822), we get a palindrome (568161865).

The spelling of 228031043 in words is "two hundred twenty-eight million, thirty-one thousand, forty-three".