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80917682 = 241986801
BaseRepresentation
bin1001101001010…
…11010010110010
312122021001012012
410310223102302
5131203331212
612010202522
72001534416
oct464532262
9178231165
1080917682
114174871a
1223123442
13139c1cb1
14aa64d46
157185922
hex4d2b4b2

80917682 has 8 divisors (see below), whose sum is σ = 124337052. Its totient is φ = 39472000.

The previous prime is 80917667. The next prime is 80917717. The reversal of 80917682 is 28671908.

It can be written as a sum of positive squares in 2 ways, for example, as 80442961 + 474721 = 8969^2 + 689^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (41).

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 3 ways as a sum of consecutive naturals, for example, 493319 + ... + 493482.

Almost surely, 280917682 is an apocalyptic number.

80917682 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

80917682 is a deficient number, since it is larger than the sum of its proper divisors (43419370).

80917682 is a wasteful number, since it uses less digits than its factorization.

80917682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986844.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 80917682 is about 8995.4256152780. The cubic root of 80917682 is about 432.5282496834.

The spelling of 80917682 in words is "eighty million, nine hundred seventeen thousand, six hundred eighty-two".

Divisors: 1 2 41 82 986801 1973602 40458841 80917682