Search a number
-
+
228145182 = 23313733151
BaseRepresentation
bin11011001100100…
…11100000011110
3120220021222100120
431212103200132
5431401121212
634345535410
75440126206
oct1546234036
9526258316
10228145182
11107866941
12644a4566
133835cc65
142242b406
151506888c
hexd99381e

228145182 has 32 divisors (see below), whose sum is σ = 483753984. Its totient is φ = 71604000.

The previous prime is 228145123. The next prime is 228145187. The reversal of 228145182 is 281541822.

228145182 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228145187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9694 + ... + 23457.

It is an arithmetic number, because the mean of its divisors is an integer number (15117312).

Almost surely, 2228145182 is an apocalyptic number.

228145182 is an abundant number, since it is smaller than the sum of its proper divisors (255608802).

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

228145182 is a wasteful number, since it uses less digits than its factorization.

228145182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33224.

The product of its digits is 10240, while the sum is 33.

The square root of 228145182 is about 15104.4755618989. The cubic root of 228145182 is about 611.0411155558.

The spelling of 228145182 in words is "two hundred twenty-eight million, one hundred forty-five thousand, one hundred eighty-two".

Divisors: 1 2 3 6 31 37 62 74 93 111 186 222 1147 2294 3441 6882 33151 66302 99453 198906 1027681 1226587 2055362 2453174 3083043 3679761 6166086 7359522 38024197 76048394 114072591 228145182