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82106799 = 331188003
BaseRepresentation
bin1001110010011…
…01100110101111
312201111110100120
410321031212233
5132004404144
612051500023
72014616265
oct471154657
9181443316
1082106799
1142390065
12235b7613
131401a308
14ac94435
15731ce19
hex4e4d9af

82106799 has 8 divisors (see below), whose sum is σ = 109828992. Its totient is φ = 54561240.

The previous prime is 82106779. The next prime is 82106831. The reversal of 82106799 is 99760128.

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

It is not a de Polignac number, because 82106799 - 29 = 82106287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82106799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82106729) 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, 43069 + ... + 44934.

It is an arithmetic number, because the mean of its divisors is an integer number (13728624).

Almost surely, 282106799 is an apocalyptic number.

82106799 is a deficient number, since it is larger than the sum of its proper divisors (27722193).

82106799 is a wasteful number, since it uses less digits than its factorization.

82106799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88317.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 82106799 is about 9061.2802075645. The cubic root of 82106799 is about 434.6366790597.

The spelling of 82106799 in words is "eighty-two million, one hundred six thousand, seven hundred ninety-nine".

Divisors: 1 3 311 933 88003 264009 27368933 82106799