Search a number
-
+
228210 = 2357607
BaseRepresentation
bin110111101101110010
3102121001020
4313231302
524300320
64520310
71640223
oct675562
9377036
10228210
11146504
12b0096
137cb48
145d24a
1547940
hex37b72

228210 has 16 divisors (see below), whose sum is σ = 547776. Its totient is φ = 60848.

The previous prime is 228203. The next prime is 228211. The reversal of 228210 is 12822.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 228210.

It is not an unprimeable number, because it can be changed into a prime (228211) by changing a digit.

228210 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3774 + ... + 3833.

It is an arithmetic number, because the mean of its divisors is an integer number (34236).

2228210 is an apocalyptic number.

228210 is an abundant number, since it is smaller than the sum of its proper divisors (319566).

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

228210 is a wasteful number, since it uses less digits than its factorization.

228210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7617.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 228210 is about 477.7133031432. The cubic root of 228210 is about 61.1098977414.

The spelling of 228210 in words is "two hundred twenty-eight thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 7607 15214 22821 38035 45642 76070 114105 228210