Search a number
-
+
128324 = 2274583
BaseRepresentation
bin11111010101000100
320112000202
4133111010
513101244
62430032
71043060
oct372504
9215022
10128324
1188459
1262318
1346541
1434aa0
152804e
hex1f544

128324 has 12 divisors (see below), whose sum is σ = 256704. Its totient is φ = 54984.

The previous prime is 128321. The next prime is 128327. The reversal of 128324 is 423821.

It is an interprime number because it is at equal distance from previous prime (128321) and next prime (128327).

128324 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 128296 and 128305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128321) 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, 2264 + ... + 2319.

It is an arithmetic number, because the mean of its divisors is an integer number (21392).

2128324 is an apocalyptic number.

128324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

128324 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128324 is a wasteful number, since it uses less digits than its factorization.

128324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4594 (or 4592 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 128324 is about 358.2233939876. The cubic root of 128324 is about 50.4393285034.

The spelling of 128324 in words is "one hundred twenty-eight thousand, three hundred twenty-four".

Divisors: 1 2 4 7 14 28 4583 9166 18332 32081 64162 128324