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10893449581 = 74733110789
BaseRepresentation
bin10100010010100110…
…01101100101101101
31001010011221120112121
422021103031211231
5134302210341311
65000540232541
7533643536140
oct121123154555
931104846477
1010893449581
1146900829a3
12214023b751
131047b2c471
14754a96057
1543b543b71
hex2894cd96d

10893449581 has 8 divisors (see below), whose sum is σ = 12714543360. Its totient is φ = 9138577488.

The previous prime is 10893449573. The next prime is 10893449587. The reversal of 10893449581 is 18594439801.

10893449581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10893449581 - 23 = 10893449573 is a prime.

It is a super-2 number, since 2×108934495812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10893449587) 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, 16555066 + ... + 16555723.

It is an arithmetic number, because the mean of its divisors is an integer number (1589317920).

Almost surely, 210893449581 is an apocalyptic number.

It is an amenable number.

10893449581 is a deficient number, since it is larger than the sum of its proper divisors (1821093779).

10893449581 is an equidigital number, since it uses as much as digits as its factorization.

10893449581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33110843.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 10893449581 in words is "ten billion, eight hundred ninety-three million, four hundred forty-nine thousand, five hundred eighty-one".

Divisors: 1 7 47 329 33110789 231775523 1556207083 10893449581