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228110232 = 23376122259
BaseRepresentation
bin11011001100010…
…10111110011000
3120220020012102010
431212022332120
5431344011412
634345105520
75436622260
oct1546127630
9526205363
10228110232
11107842659
12644882a0
133834a08c
142241c7a0
151505d33c
hexd98af98

228110232 has 64 divisors (see below), whose sum is σ = 662457600. Its totient is φ = 64103040.

The previous prime is 228110221. The next prime is 228110237. The reversal of 228110232 is 232011822.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 228110199 and 228110208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228110237) 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, 882 + ... + 21377.

It is an arithmetic number, because the mean of its divisors is an integer number (10350900).

Almost surely, 2228110232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228110232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331228800).

228110232 is an abundant number, since it is smaller than the sum of its proper divisors (434347368).

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

228110232 is a wasteful number, since it uses less digits than its factorization.

228110232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22336 (or 22332 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 228110232 is about 15103.3185757303. The cubic root of 228110232 is about 611.0099117738.

The spelling of 228110232 in words is "two hundred twenty-eight million, one hundred ten thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 61 84 122 168 183 244 366 427 488 732 854 1281 1464 1708 2562 3416 5124 10248 22259 44518 66777 89036 133554 155813 178072 267108 311626 467439 534216 623252 934878 1246504 1357799 1869756 2715598 3739512 4073397 5431196 8146794 9504593 10862392 16293588 19009186 28513779 32587176 38018372 57027558 76036744 114055116 228110232