Search a number
-
+
24246820 = 2251393257
BaseRepresentation
bin101110001111…
…1101000100100
31200121212101101
41130133220210
522201344240
62223405444
7413044303
oct134375044
950555341
1024246820
1112760aa4
128153884
13503c440
14331243a
1521de39a
hex171fa24

24246820 has 24 divisors (see below), whose sum is σ = 54835704. Its totient is φ = 8952576.

The previous prime is 24246791. The next prime is 24246821. The reversal of 24246820 is 2864242.

It can be written as a sum of positive squares in 4 ways, for example, as 4104676 + 20142144 = 2026^2 + 4488^2 .

It is a super-2 number, since 2×242468202 = 1175816560224800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (24246821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46369 + ... + 46888.

It is an arithmetic number, because the mean of its divisors is an integer number (2284821).

Almost surely, 224246820 is an apocalyptic number.

24246820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24246820 is an abundant number, since it is smaller than the sum of its proper divisors (30588884).

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

24246820 is a wasteful number, since it uses less digits than its factorization.

24246820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93279 (or 93277 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 24246820 is about 4924.1060102317. The cubic root of 24246820 is about 289.4353658892.

The spelling of 24246820 in words is "twenty-four million, two hundred forty-six thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 93257 186514 373028 466285 932570 1212341 1865140 2424682 4849364 6061705 12123410 24246820