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9140681 = 111814591
BaseRepresentation
bin100010110111…
…100111001001
3122012101122202
4202313213021
54320000211
6523525545
7140460134
oct42674711
918171582
109140681
115183590
1230898b5
131b806b4
1412dd21b
15c0853b
hex8b79c9

9140681 has 8 divisors (see below), whose sum is σ = 10028928. Its totient is φ = 8262000.

The previous prime is 9140671. The next prime is 9140711. The reversal of 9140681 is 1860419.

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 9140681 - 218 = 8878537 is a prime.

It is a super-2 number, since 2×91406812 = 167104098287522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9140641) 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, 305 + ... + 4286.

It is an arithmetic number, because the mean of its divisors is an integer number (1253616).

Almost surely, 29140681 is an apocalyptic number.

It is an amenable number.

9140681 is a deficient number, since it is larger than the sum of its proper divisors (888247).

9140681 is a wasteful number, since it uses less digits than its factorization.

9140681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4783.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 9140681 is about 3023.3559168580. The cubic root of 9140681 is about 209.0865921719.

The spelling of 9140681 in words is "nine million, one hundred forty thousand, six hundred eighty-one".

Divisors: 1 11 181 1991 4591 50501 830971 9140681