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82750017 = 374391639
BaseRepresentation
bin1001110111010…
…10101001000001
312202201010200110
410323222221001
5132141000032
612113341533
72023235460
oct473525101
9182633613
1082750017
114278a349
12238678a9
13141b400c
14adc09d7
1573e87cc
hex4eeaa41

82750017 has 16 divisors (see below), whose sum is σ = 129029120. Its totient is φ = 46185552.

The previous prime is 82750009. The next prime is 82750027. The reversal of 82750017 is 71005728.

It is a happy number.

It is not a de Polignac number, because 82750017 - 23 = 82750009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82750027) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 44917 + ... + 46722.

It is an arithmetic number, because the mean of its divisors is an integer number (8064320).

Almost surely, 282750017 is an apocalyptic number.

It is an amenable number.

82750017 is a deficient number, since it is larger than the sum of its proper divisors (46279103).

82750017 is a wasteful number, since it uses less digits than its factorization.

82750017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91692.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 82750017 is about 9096.7036337346. The cubic root of 82750017 is about 435.7686976288.

The spelling of 82750017 in words is "eighty-two million, seven hundred fifty thousand, seventeen".

Divisors: 1 3 7 21 43 129 301 903 91639 274917 641473 1924419 3940477 11821431 27583339 82750017