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767228 = 227114753
BaseRepresentation
bin10111011010011111100
31102222102212
42323103330
5144022403
624235552
76343550
oct2732374
91388385
10767228
11484480
1230bbb8
1320b2a7
1415d860
151024d8
hexbb4fc

767228 has 48 divisors (see below), whose sum is σ = 1741824. Its totient is φ = 287040.

The previous prime is 767203. The next prime is 767243. The reversal of 767228 is 822767.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 767194 and 767203.

It is a congruent number.

It is an unprimeable number.

767228 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 15 ways as a sum of consecutive naturals, for example, 14450 + ... + 14502.

It is an arithmetic number, because the mean of its divisors is an integer number (36288).

2767228 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 767228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (870912).

767228 is an abundant number, since it is smaller than the sum of its proper divisors (974596).

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

767228 is a wasteful number, since it uses less digits than its factorization.

767228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 120 counting only the distinct ones).

The product of its digits is 9408, while the sum is 32.

The square root of 767228 is about 875.9155210407. The cubic root of 767228 is about 91.5464444158.

It can be divided in two parts, 7 and 67228, that multiplied together give a square (470596 = 6862).

The spelling of 767228 in words is "seven hundred sixty-seven thousand, two hundred twenty-eight".

Divisors: 1 2 4 7 11 14 22 28 44 47 53 77 94 106 154 188 212 308 329 371 517 583 658 742 1034 1166 1316 1484 2068 2332 2491 3619 4081 4982 7238 8162 9964 14476 16324 17437 27401 34874 54802 69748 109604 191807 383614 767228