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82075299 = 3131208843
BaseRepresentation
bin1001110010001…
…01111010100011
312201102212010220
410321011322203
5132002402144
612051054123
72014425405
oct471057243
9181385126
1082075299
1142369429
12235a1343
1314008b87
14ac86b75
157313919
hex4e45ea3

82075299 has 8 divisors (see below), whose sum is σ = 110269632. Its totient is φ = 54298920.

The previous prime is 82075291. The next prime is 82075363. The reversal of 82075299 is 99257028.

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

It is not a de Polignac number, because 82075299 - 23 = 82075291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82075299.

It is not an unprimeable number, because it can be changed into a prime (82075291) 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, 104029 + ... + 104814.

It is an arithmetic number, because the mean of its divisors is an integer number (13783704).

Almost surely, 282075299 is an apocalyptic number.

82075299 is a deficient number, since it is larger than the sum of its proper divisors (28194333).

82075299 is a wasteful number, since it uses less digits than its factorization.

82075299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208977.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 82075299 is about 9059.5418758346. The cubic root of 82075299 is about 434.5810896454.

The spelling of 82075299 in words is "eighty-two million, seventy-five thousand, two hundred ninety-nine".

Divisors: 1 3 131 393 208843 626529 27358433 82075299