Search a number
-
+
228333087 = 343677681
BaseRepresentation
bin11011001110000…
…01011000011111
3120220122112010000
431213001120133
5431423124322
634353545343
75441541063
oct1547013037
9526575100
10228333087
11107985034
1264575253
13383c7648
1422479aa3
15150a43ac
hexd9c161f

228333087 has 20 divisors (see below), whose sum is σ = 342064096. Its totient is φ = 151787520.

The previous prime is 228333067. The next prime is 228333151. The reversal of 228333087 is 780333822.

It is not a de Polignac number, because 228333087 - 223 = 219944479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228333067) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25887 + ... + 33567.

Almost surely, 2228333087 is an apocalyptic number.

228333087 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

228333087 is a deficient number, since it is larger than the sum of its proper divisors (113731009).

228333087 is an equidigital number, since it uses as much as digits as its factorization.

228333087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8060 (or 8051 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 228333087 is about 15110.6944578997. The cubic root of 228333087 is about 611.2088248074.

The spelling of 228333087 in words is "two hundred twenty-eight million, three hundred thirty-three thousand, eighty-seven".

Divisors: 1 3 9 27 81 367 1101 3303 7681 9909 23043 29727 69129 207387 622161 2818927 8456781 25370343 76111029 228333087