Search a number
-
+
123460 = 2256173
BaseRepresentation
bin11110001001000100
320021100121
4132021010
512422320
62351324
71022641
oct361104
9207317
10123460
1184837
125b544
134426c
1432dc8
15268aa
hex1e244

123460 has 12 divisors (see below), whose sum is σ = 259308. Its totient is φ = 49376.

The previous prime is 123457. The next prime is 123479. The reversal of 123460 is 64321.

It can be written as a sum of positive squares in 2 ways, for example, as 15876 + 107584 = 126^2 + 328^2 .

It is a plaindrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3067 + ... + 3106.

It is an arithmetic number, because the mean of its divisors is an integer number (21609).

2123460 is an apocalyptic number.

123460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123460 is an abundant number, since it is smaller than the sum of its proper divisors (135848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123460 is a wasteful number, since it uses less digits than its factorization.

123460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6182 (or 6180 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 123460 is about 351.3687521679. The cubic root of 123460 is about 49.7938176118.

Adding to 123460 its reverse (64321), we get a palindrome (187781).

The spelling of 123460 in words is "one hundred twenty-three thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 6173 12346 24692 30865 61730 123460