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124385 = 524877
BaseRepresentation
bin11110010111100001
320022121212
4132113201
512440020
62355505
71025432
oct362741
9208555
10124385
11854a8
125bb95
1344801
1433489
1526cc5
hex1e5e1

124385 has 4 divisors (see below), whose sum is σ = 149268. Its totient is φ = 99504.

The previous prime is 124367. The next prime is 124427. The reversal of 124385 is 583421.

124385 is nontrivially palindromic in base 16.

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 14161 + 110224 = 119^2 + 332^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-124385 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 124385.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12434 + ... + 12443.

It is an arithmetic number, because the mean of its divisors is an integer number (37317).

124385 is a Friedman number, since it can be written as (8+4)^5/2-31, using all its digits and the basic arithmetic operations.

2124385 is an apocalyptic number.

It is an amenable number.

124385 is a deficient number, since it is larger than the sum of its proper divisors (24883).

124385 is an equidigital number, since it uses as much as digits as its factorization.

124385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24882.

The product of its digits is 960, while the sum is 23.

The square root of 124385 is about 352.6825768308. The cubic root of 124385 is about 49.9178651512.

The spelling of 124385 in words is "one hundred twenty-four thousand, three hundred eighty-five".

Divisors: 1 5 24877 124385