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106493 = 109977
BaseRepresentation
bin11001111111111101
312102002012
4121333331
511401433
62141005
7622322
oct317775
9172065
10106493
1173012
1251765
133961a
142ab49
1521848
hex19ffd

106493 has 4 divisors (see below), whose sum is σ = 107580. Its totient is φ = 105408.

The previous prime is 106487. The next prime is 106501. The reversal of 106493 is 394601.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 88804 + 17689 = 298^2 + 133^2 .

It is a cyclic number.

It is not a de Polignac number, because 106493 - 212 = 102397 is a prime.

It is a super-2 number, since 2×1064932 = 22681518098, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106433) 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, 380 + ... + 597.

It is an arithmetic number, because the mean of its divisors is an integer number (26895).

2106493 is an apocalyptic number.

It is an amenable number.

106493 is a deficient number, since it is larger than the sum of its proper divisors (1087).

106493 is an equidigital number, since it uses as much as digits as its factorization.

106493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 106493 is about 326.3326523656. The cubic root of 106493 is about 47.3994920038.

The spelling of 106493 in words is "one hundred six thousand, four hundred ninety-three".

Divisors: 1 109 977 106493