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228902159 is a prime number
BaseRepresentation
bin11011010010011…
…00010100001111
3120221201102201202
431221030110033
5432044332114
634414100115
75446431143
oct1551142417
9527642652
10228902159
11108233642
12647aa63b
1338566685
1422587223
1515167cde
hexda4c50f

228902159 has 2 divisors, whose sum is σ = 228902160. Its totient is φ = 228902158.

The previous prime is 228902147. The next prime is 228902183. The reversal of 228902159 is 951209822.

228902159 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228902159 - 24 = 228902143 is a prime.

It is a super-2 number, since 2×2289021592 = 104792396789722562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228902119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114451079 + 114451080.

It is an arithmetic number, because the mean of its divisors is an integer number (114451080).

Almost surely, 2228902159 is an apocalyptic number.

228902159 is a deficient number, since it is larger than the sum of its proper divisors (1).

228902159 is an equidigital number, since it uses as much as digits as its factorization.

228902159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 228902159 is about 15129.5128474118. The cubic root of 228902159 is about 611.7161731946.

The spelling of 228902159 in words is "two hundred twenty-eight million, nine hundred two thousand, one hundred fifty-nine".