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82797801 = 3196123813
BaseRepresentation
bin1001110111101…
…10010011101001
312202210120020020
410323312103221
5132144012201
612114351053
72023525002
oct473662351
9182716206
1082797801
1142812239
122388b489
13141cc9a8
14add41a9
157407a36
hex4ef64e9

82797801 has 16 divisors (see below), whose sum is σ = 118117440. Its totient is φ = 51433920.

The previous prime is 82797797. The next prime is 82797809. The reversal of 82797801 is 10879728.

It is not a de Polignac number, because 82797801 - 22 = 82797797 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82797809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8430 + ... + 15383.

It is an arithmetic number, because the mean of its divisors is an integer number (7382340).

Almost surely, 282797801 is an apocalyptic number.

It is an amenable number.

82797801 is a deficient number, since it is larger than the sum of its proper divisors (35319639).

82797801 is a wasteful number, since it uses less digits than its factorization.

82797801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23896.

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 82797801 is about 9099.3297005878. The cubic root of 82797801 is about 435.8525597050.

The spelling of 82797801 in words is "eighty-two million, seven hundred ninety-seven thousand, eight hundred one".

Divisors: 1 3 19 57 61 183 1159 3477 23813 71439 452447 1357341 1452593 4357779 27599267 82797801