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24998389 = 134334441
BaseRepresentation
bin101111101011…
…1000111110101
31202001001100021
41133113013311
522344422024
62251445141
7422324413
oct137270765
952031307
1024998389
1113124729
1284567b1
135243560
14346a2b3
1522dbde4
hex17d71f5

24998389 has 8 divisors (see below), whose sum is σ = 26989592. Its totient is φ = 23016960.

The previous prime is 24998383. The next prime is 24998399. The reversal of 24998389 is 98389942.

It can be written as a sum of positive squares in 4 ways, for example, as 168100 + 24830289 = 410^2 + 4983^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 24998389 - 217 = 24867317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24998383) by changing a digit.

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, 3409 + ... + 7849.

It is an arithmetic number, because the mean of its divisors is an integer number (3373699).

Almost surely, 224998389 is an apocalyptic number.

It is an amenable number.

24998389 is a deficient number, since it is larger than the sum of its proper divisors (1991203).

24998389 is a wasteful number, since it uses less digits than its factorization.

24998389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887.

The product of its digits is 1119744, while the sum is 52.

The square root of 24998389 is about 4999.8388974046. The cubic root of 24998389 is about 292.3954928963.

The spelling of 24998389 in words is "twenty-four million, nine hundred ninety-eight thousand, three hundred eighty-nine".

Divisors: 1 13 433 4441 5629 57733 1922953 24998389