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83097745 = 5371572861
BaseRepresentation
bin1001111001111…
…11100010010001
312210100210200021
410330333202101
5132233111440
612125023441
72026214323
oct474774221
9183323607
1083097745
11429a7625
12239b4b81
13142a6383
14b071613
15746684a
hex4f3f891

83097745 has 16 divisors (see below), whose sum is σ = 103100688. Its totient is φ = 64247040.

The previous prime is 83097733. The next prime is 83097767. The reversal of 83097745 is 54779038.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 524176 + 82573569 = 724^2 + 9087^2 .

It is not a de Polignac number, because 83097745 - 25 = 83097713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27615 + ... + 30475.

It is an arithmetic number, because the mean of its divisors is an integer number (6443793).

Almost surely, 283097745 is an apocalyptic number.

It is an amenable number.

83097745 is a deficient number, since it is larger than the sum of its proper divisors (20002943).

83097745 is a wasteful number, since it uses less digits than its factorization.

83097745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 83097745 is about 9115.7964545069. The cubic root of 83097745 is about 436.3782331436.

The spelling of 83097745 in words is "eighty-three million, ninety-seven thousand, seven hundred forty-five".

Divisors: 1 5 37 157 185 785 2861 5809 14305 29045 105857 449177 529285 2245885 16619549 83097745