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82826656 = 25111671409
BaseRepresentation
bin1001110111111…
…01010110100000
312202212000210221
410323331112200
5132200423111
612115132424
72024005063
oct473752640
9182760727
1082826656
1142831990
12238a4114
131420cb73
14b0008da
157411371
hex4efd5a0

82826656 has 48 divisors (see below), whose sum is σ = 179081280. Its totient is φ = 37396480.

The previous prime is 82826641. The next prime is 82826659. The reversal of 82826656 is 65662828.

It is not an unprimeable number, because it can be changed into a prime (82826659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58080 + ... + 59488.

It is an arithmetic number, because the mean of its divisors is an integer number (3730860).

Almost surely, 282826656 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 82826656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89540640).

82826656 is an abundant number, since it is smaller than the sum of its proper divisors (96254624).

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

82826656 is a wasteful number, since it uses less digits than its factorization.

82826656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597 (or 1589 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 82826656 is about 9100.9151188218. The cubic root of 82826656 is about 435.9031853045.

It can be divided in two parts, 828266 and 56, that multiplied together give a triangular number (46382896 = T9631).

The spelling of 82826656 in words is "eighty-two million, eight hundred twenty-six thousand, six hundred fifty-six".

Divisors: 1 2 4 8 11 16 22 32 44 88 167 176 334 352 668 1336 1409 1837 2672 2818 3674 5344 5636 7348 11272 14696 15499 22544 29392 30998 45088 58784 61996 123992 235303 247984 470606 495968 941212 1882424 2588333 3764848 5176666 7529696 10353332 20706664 41413328 82826656