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24998681269 is a prime number
BaseRepresentation
bin10111010010000010…
…011001101010110101
32101112012102120212001
4113102002121222311
5402144130300034
615252332255301
71543330166452
oct272202315265
971465376761
1024998681269
11a669116271
124a18011531
1324851941c3
1412d2122829
159b4a11a14
hex5d2099ab5

24998681269 has 2 divisors, whose sum is σ = 24998681270. Its totient is φ = 24998681268.

The previous prime is 24998681167. The next prime is 24998681299. The reversal of 24998681269 is 96218689942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22858416100 + 2140265169 = 151190^2 + 46263^2 .

It is a cyclic number.

It is not a de Polignac number, because 24998681269 - 29 = 24998680757 is a prime.

It is a super-2 number, since 2×249986812692 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 24998681269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24998681299) 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 as a sum of consecutive naturals, namely, 12499340634 + 12499340635.

It is an arithmetic number, because the mean of its divisors is an integer number (12499340635).

Almost surely, 224998681269 is an apocalyptic number.

It is an amenable number.

24998681269 is a deficient number, since it is larger than the sum of its proper divisors (1).

24998681269 is an equidigital number, since it uses as much as digits as its factorization.

24998681269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26873856, while the sum is 64.

The spelling of 24998681269 in words is "twenty-four billion, nine hundred ninety-eight million, six hundred eighty-one thousand, two hundred sixty-nine".