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228767112 = 23337712131
BaseRepresentation
bin11011010001010…
…11010110001000
3120221110120111000
431220223112020
5432031021422
634411135000
75445326340
oct1550532610
9527416430
10228767112
11108151132
1264744460
133851a072
142254dd20
151513ccac
hexda2b588

228767112 has 128 divisors (see below), whose sum is σ = 736819200. Its totient is φ = 64411200.

The previous prime is 228767111. The next prime is 228767117. The reversal of 228767112 is 211767822.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228767111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106287 + ... + 108417.

It is an arithmetic number, because the mean of its divisors is an integer number (5756400).

Almost surely, 2228767112 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 228767112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368409600).

228767112 is an abundant number, since it is smaller than the sum of its proper divisors (508052088).

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

228767112 is a wasteful number, since it uses less digits than its factorization.

228767112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224 (or 2214 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 228767112 is about 15125.0491569449. The cubic root of 228767112 is about 611.5958500460.

The spelling of 228767112 in words is "two hundred twenty-eight million, seven hundred sixty-seven thousand, one hundred twelve".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 71 72 84 108 126 142 168 189 213 216 252 284 378 426 497 504 568 639 756 852 994 1278 1491 1512 1704 1917 1988 2131 2556 2982 3834 3976 4262 4473 5112 5964 6393 7668 8524 8946 11928 12786 13419 14917 15336 17048 17892 19179 25572 26838 29834 35784 38358 44751 51144 53676 57537 59668 76716 89502 107352 115074 119336 134253 151301 153432 179004 230148 268506 302602 358008 402759 453903 460296 537012 605204 805518 907806 1059107 1074024 1210408 1361709 1611036 1815612 2118214 2723418 3177321 3222072 3631224 4085127 4236428 5446836 6354642 8170254 8472856 9531963 10893672 12709284 16340508 19063926 25418568 28595889 32681016 38127852 57191778 76255704 114383556 228767112