Search a number
-
+
228035251 is a prime number
BaseRepresentation
bin11011001011110…
…00101010110011
3120220002101120001
431211320222303
5431334112001
634343330431
75436160543
oct1545705263
9526071501
10228035251
111077a1294
1264450a17
1338321c02
14223dd323
1515046001
hexd978ab3

228035251 has 2 divisors, whose sum is σ = 228035252. Its totient is φ = 228035250.

The previous prime is 228035239. The next prime is 228035261. The reversal of 228035251 is 152530822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228035251 - 29 = 228034739 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228035221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114017625 + 114017626.

It is an arithmetic number, because the mean of its divisors is an integer number (114017626).

Almost surely, 2228035251 is an apocalyptic number.

228035251 is a deficient number, since it is larger than the sum of its proper divisors (1).

228035251 is an equidigital number, since it uses as much as digits as its factorization.

228035251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 228035251 is about 15100.8361026799. The cubic root of 228035251 is about 610.9429570761.

The spelling of 228035251 in words is "two hundred twenty-eight million, thirty-five thousand, two hundred fifty-one".