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82725916 = 22721332467
BaseRepresentation
bin1001110111001…
…00110000011100
312202122220121211
410323210300130
5132134212131
612113034204
72023105300
oct473446034
9182586554
1082725916
1142773229
1223855964
13141a6060
14adb5d00
1573e15b1
hex4ee4c1c

82725916 has 36 divisors (see below), whose sum is σ = 181366248. Its totient is φ = 32725728.

The previous prime is 82725889. The next prime is 82725941. The reversal of 82725916 is 61952728.

It is a congruent number.

It is an unprimeable 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 11 ways as a sum of consecutive naturals, for example, 13686 + ... + 18781.

Almost surely, 282725916 is an apocalyptic number.

It is an amenable number.

82725916 is an abundant number, since it is smaller than the sum of its proper divisors (98640332).

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

82725916 is a wasteful number, since it uses less digits than its factorization.

82725916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32498 (or 32489 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 82725916 is about 9095.3788266350. The cubic root of 82725916 is about 435.7263875422.

The spelling of 82725916 in words is "eighty-two million, seven hundred twenty-five thousand, nine hundred sixteen".

Divisors: 1 2 4 7 13 14 26 28 49 52 91 98 182 196 364 637 1274 2548 32467 64934 129868 227269 422071 454538 844142 909076 1590883 1688284 2954497 3181766 5908994 6363532 11817988 20681479 41362958 82725916