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82798965 = 3252379999
BaseRepresentation
bin1001110111101…
…10100101110101
312202210121211100
410323312211311
5132144031330
612114400313
72023531254
oct473664565
9182717740
1082798965
11428130a7
1223890099
1314200392
14add479b
157408060
hex4ef6975

82798965 has 24 divisors (see below), whose sum is σ = 149760000. Its totient is φ = 42238944.

The previous prime is 82798927. The next prime is 82799029. The reversal of 82798965 is 56989728.

It is a happy number.

It is not a de Polignac number, because 82798965 - 29 = 82798453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38965 + ... + 41034.

It is an arithmetic number, because the mean of its divisors is an integer number (6240000).

Almost surely, 282798965 is an apocalyptic number.

It is an amenable number.

82798965 is a deficient number, since it is larger than the sum of its proper divisors (66961035).

82798965 is a wasteful number, since it uses less digits than its factorization.

82798965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80033 (or 80030 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 82798965 is about 9099.3936611183. The cubic root of 82798965 is about 435.8546021506.

The spelling of 82798965 in words is "eighty-two million, seven hundred ninety-eight thousand, nine hundred sixty-five".

Divisors: 1 3 5 9 15 23 45 69 115 207 345 1035 79999 239997 399995 719991 1199985 1839977 3599955 5519931 9199885 16559793 27599655 82798965