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82750753 = 229361357
BaseRepresentation
bin1001110111010…
…10110100100001
312202201011200201
410323222310201
5132141011003
612113345201
72023240561
oct473526441
9182634621
1082750753
114278a958
1223868201
13141b4457
14adc0da1
1573e8b1d
hex4eead21

82750753 has 4 divisors (see below), whose sum is σ = 83112340. Its totient is φ = 82389168.

The previous prime is 82750741. The next prime is 82750769. The reversal of 82750753 is 35705728.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53406864 + 29343889 = 7308^2 + 5417^2 .

It is a cyclic number.

It is not a de Polignac number, because 82750753 - 25 = 82750721 is a prime.

It is a super-3 number, since 3×827507533 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82753753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180450 + ... + 180907.

It is an arithmetic number, because the mean of its divisors is an integer number (20778085).

Almost surely, 282750753 is an apocalyptic number.

It is an amenable number.

82750753 is a deficient number, since it is larger than the sum of its proper divisors (361587).

82750753 is a wasteful number, since it uses less digits than its factorization.

82750753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361586.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 82750753 is about 9096.7440878591. The cubic root of 82750753 is about 435.7699895714.

The spelling of 82750753 in words is "eighty-two million, seven hundred fifty thousand, seven hundred fifty-three".

Divisors: 1 229 361357 82750753