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24421081 = 199122719
BaseRepresentation
bin101110100101…
…0001011011001
31200221201102111
41131022023121
522222433311
62231232321
7414401326
oct135121331
950851374
1024421081
111286aa13
1282186a1
1350a0859
143359b4d
152225d21
hex174a2d9

24421081 has 4 divisors (see below), whose sum is σ = 24544000. Its totient is φ = 24298164.

The previous prime is 24421057. The next prime is 24421091. The reversal of 24421081 is 18012442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 24421081 - 29 = 24420569 is a prime.

It is a super-2 number, since 2×244210812 = 1192778394417122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24421021) 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 3 ways as a sum of consecutive naturals, for example, 61161 + ... + 61558.

It is an arithmetic number, because the mean of its divisors is an integer number (6136000).

Almost surely, 224421081 is an apocalyptic number.

It is an amenable number.

24421081 is a deficient number, since it is larger than the sum of its proper divisors (122919).

24421081 is a wasteful number, since it uses less digits than its factorization.

24421081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122918.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 24421081 is about 4941.7690152414. The cubic root of 24421081 is about 290.1270984699.

The spelling of 24421081 in words is "twenty-four million, four hundred twenty-one thousand, eighty-one".

Divisors: 1 199 122719 24421081