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24212138 = 238931121
BaseRepresentation
bin101110001011…
…1001010101010
31200120002210212
41130113022222
522144242023
62222541122
7412541216
oct134271252
950502725
1024212138
1112737a35
1281377a2
135029712
143303946
1521d3e78
hex17172aa

24212138 has 8 divisors (see below), whose sum is σ = 36412740. Its totient is φ = 12074560.

The previous prime is 24212119. The next prime is 24212159. The reversal of 24212138 is 83121242.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23843689 + 368449 = 4883^2 + 607^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 14783 + ... + 16338.

Almost surely, 224212138 is an apocalyptic number.

24212138 is a deficient number, since it is larger than the sum of its proper divisors (12200602).

24212138 is a wasteful number, since it uses less digits than its factorization.

24212138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31512.

The product of its digits is 768, while the sum is 23.

The square root of 24212138 is about 4920.5830955284. The cubic root of 24212138 is about 289.2972998488.

The spelling of 24212138 in words is "twenty-four million, two hundred twelve thousand, one hundred thirty-eight".

Divisors: 1 2 389 778 31121 62242 12106069 24212138