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24212990 = 254751517
BaseRepresentation
bin101110001011…
…1010111111110
31200120010222102
41130113113332
522144303430
62222545102
7412543544
oct134272776
950503872
1024212990
111273863a
128138192
135029c19
143303d94
1521d4345
hex17175fe

24212990 has 16 divisors (see below), whose sum is σ = 44511552. Its totient is φ = 9478944.

The previous prime is 24212989. The next prime is 24213019. The reversal of 24212990 is 9921242.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25289 + ... + 26228.

It is an arithmetic number, because the mean of its divisors is an integer number (2781972).

Almost surely, 224212990 is an apocalyptic number.

24212990 is a deficient number, since it is larger than the sum of its proper divisors (20298562).

24212990 is a wasteful number, since it uses less digits than its factorization.

24212990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51571.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 24212990 is about 4920.6696698722. The cubic root of 24212990 is about 289.3006931662.

The spelling of 24212990 in words is "twenty-four million, two hundred twelve thousand, nine hundred ninety".

Divisors: 1 2 5 10 47 94 235 470 51517 103034 257585 515170 2421299 4842598 12106495 24212990