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83105 = 5111511
BaseRepresentation
bin10100010010100001
311012222222
4110102201
510124410
61440425
7464201
oct242241
9135888
1083105
1157490
1240115
132ba99
1422401
1519955
hex144a1

83105 has 8 divisors (see below), whose sum is σ = 108864. Its totient is φ = 60400.

The previous prime is 83101. The next prime is 83117. The reversal of 83105 is 50138.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83105 - 22 = 83101 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (83101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701 + ... + 810.

It is an arithmetic number, because the mean of its divisors is an integer number (13608).

283105 is an apocalyptic number.

It is an amenable number.

83105 is a deficient number, since it is larger than the sum of its proper divisors (25759).

83105 is a wasteful number, since it uses less digits than its factorization.

83105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 83105 is about 288.2793783815. The cubic root of 83105 is about 43.6390932373.

It can be divided in two parts, 8 and 3105, that added together give a palindrome (3113).

The spelling of 83105 in words is "eighty-three thousand, one hundred five".

Divisors: 1 5 11 55 1511 7555 16621 83105