Search a number
-
+
228282306 = 23725721149
BaseRepresentation
bin11011001101101…
…00111111000010
3120220112221110020
431212310333002
5431420013211
634352514310
75441240040
oct1546647702
9526487406
10228282306
1110794a96a
126454b996
13383aa4b5
1422465390
1515094306
hexd9b4fc2

228282306 has 32 divisors (see below), whose sum is σ = 523843200. Its totient is φ = 64966656.

The previous prime is 228282293. The next prime is 228282343. The reversal of 228282306 is 603282822.

It is a super-2 number, since 2×2282823062 = 104225622465355272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220 + ... + 21368.

It is an arithmetic number, because the mean of its divisors is an integer number (16370100).

Almost surely, 2228282306 is an apocalyptic number.

228282306 is an abundant number, since it is smaller than the sum of its proper divisors (295560894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228282306 is a wasteful number, since it uses less digits than its factorization.

228282306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21418.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 228282306 is about 15109.0140644583. The cubic root of 228282306 is about 611.1635107490.

The spelling of 228282306 in words is "two hundred twenty-eight million, two hundred eighty-two thousand, three hundred six".

Divisors: 1 2 3 6 7 14 21 42 257 514 771 1542 1799 3598 5397 10794 21149 42298 63447 126894 148043 296086 444129 888258 5435293 10870586 16305879 32611758 38047051 76094102 114141153 228282306