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8236228 = 2271131317
BaseRepresentation
bin11111011010110011000100
3120111102222111
4133122303010
54102024403
6452310404
7130002220
oct37326304
916442874
108236228
114716000
122912404
131924b10
141145780
15aca56d
hex7dacc4

8236228 has 96 divisors (see below), whose sum is σ = 20659968. Its totient is φ = 2787840.

The previous prime is 8236219. The next prime is 8236229. The reversal of 8236228 is 8226328.

It is a self number, because there is not a number n which added to its sum of digits gives 8236228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8236229) 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, 484476 + ... + 484492.

It is an arithmetic number, because the mean of its divisors is an integer number (215208).

Almost surely, 28236228 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 8236228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10329984).

8236228 is an abundant number, since it is smaller than the sum of its proper divisors (12423740).

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

8236228 is a wasteful number, since it uses less digits than its factorization.

8236228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 50 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 8236228 is about 2869.8829244413. The cubic root of 8236228 is about 201.9495021306.

It can be divided in two parts, 8236 and 228, that added together give a square (8464 = 922).

The spelling of 8236228 in words is "eight million, two hundred thirty-six thousand, two hundred twenty-eight".

Divisors: 1 2 4 7 11 13 14 17 22 26 28 34 44 52 68 77 91 119 121 143 154 182 187 221 238 242 286 308 364 374 442 476 484 572 748 847 884 1001 1309 1331 1547 1573 1694 2002 2057 2431 2618 2662 3094 3146 3388 4004 4114 4862 5236 5324 6188 6292 8228 9317 9724 11011 14399 17017 17303 18634 22022 22627 26741 28798 34034 34606 37268 44044 45254 53482 57596 68068 69212 90508 106964 121121 158389 187187 242242 294151 316778 374374 484484 588302 633556 748748 1176604 2059057 4118114 8236228