Search a number
-
+
12098681 = 75332611
BaseRepresentation
bin101110001001…
…110001111001
3211202200021022
4232021301321
511044124211
61111152225
7204560060
oct56116171
924680238
1012098681
116913a11
124075675
132677baa
14186d1d7
1510debdb
hexb89c79

12098681 has 8 divisors (see below), whose sum is σ = 14088384. Its totient is φ = 10174320.

The previous prime is 12098641. The next prime is 12098683. The reversal of 12098681 is 18689021.

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 12098681 - 26 = 12098617 is a prime.

It is a super-2 number, since 2×120986812 = 292756163879522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12098683) 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 7 ways as a sum of consecutive naturals, for example, 15935 + ... + 16676.

It is an arithmetic number, because the mean of its divisors is an integer number (1761048).

Almost surely, 212098681 is an apocalyptic number.

It is an amenable number.

12098681 is a deficient number, since it is larger than the sum of its proper divisors (1989703).

12098681 is an equidigital number, since it uses as much as digits as its factorization.

12098681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32671.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 12098681 is about 3478.3158280984. The cubic root of 12098681 is about 229.5687002318.

The spelling of 12098681 in words is "twelve million, ninety-eight thousand, six hundred eighty-one".

Divisors: 1 7 53 371 32611 228277 1728383 12098681