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83285105 = 5831011987
BaseRepresentation
bin1001111011011…
…01010001110001
312210201022200112
410331231101301
5132310110410
612133031105
72030624501
oct475552161
9183638615
1083285105
1143015372
1223a85495
1314340737
14b0bda01
1574a2105
hex4f6d471

83285105 has 16 divisors (see below), whose sum is σ = 102199104. Its totient is φ = 65140800.

The previous prime is 83285089. The next prime is 83285117. The reversal of 83285105 is 50158238.

It is a happy number.

It is not a de Polignac number, because 83285105 - 24 = 83285089 is a prime.

It is a super-2 number, since 2×832851052 = 13872817429722050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon 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, 40922 + ... + 42908.

It is an arithmetic number, because the mean of its divisors is an integer number (6387444).

Almost surely, 283285105 is an apocalyptic number.

It is an amenable number.

83285105 is a deficient number, since it is larger than the sum of its proper divisors (18913999).

83285105 is a wasteful number, since it uses less digits than its factorization.

83285105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 83285105 is about 9126.0673348382. The cubic root of 83285105 is about 436.7059534478.

The spelling of 83285105 in words is "eighty-three million, two hundred eighty-five thousand, one hundred five".

Divisors: 1 5 83 101 415 505 1987 8383 9935 41915 164921 200687 824605 1003435 16657021 83285105