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82816888 = 23711134443
BaseRepresentation
bin1001110111110…
…10111101111000
312202211112102011
410323322331320
5132200120023
612115015304
72023634440
oct473727570
9182745364
1082816888
1142825610
122389a534
131420859b
14addb120
15740d50d
hex4efaf78

82816888 has 32 divisors (see below), whose sum is σ = 193599360. Its totient is φ = 32266080.

The previous prime is 82816883. The next prime is 82816889. The reversal of 82816888 is 88861828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82816883) 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, 66606 + ... + 67837.

It is an arithmetic number, because the mean of its divisors is an integer number (6049980).

Almost surely, 282816888 is an apocalyptic number.

82816888 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

82816888 is an abundant number, since it is smaller than the sum of its proper divisors (110782472).

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

82816888 is a wasteful number, since it uses less digits than its factorization.

82816888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134467 (or 134463 counting only the distinct ones).

The product of its digits is 393216, while the sum is 49.

The square root of 82816888 is about 9100.3784536688. The cubic root of 82816888 is about 435.8860488337.

The spelling of 82816888 in words is "eighty-two million, eight hundred sixteen thousand, eight hundred eighty-eight".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 134443 268886 537772 941101 1075544 1478873 1882202 2957746 3764404 5915492 7528808 10352111 11830984 20704222 41408444 82816888