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10981093 = 98311171
BaseRepresentation
bin101001111000…
…111011100101
3202122220020011
4221320323211
510302343333
61031210221
7162223564
oct51707345
922586204
1010981093
116220292
123816971
1323762b6
14165bbdb
15e6d9cd
hexa78ee5

10981093 has 4 divisors (see below), whose sum is σ = 10993248. Its totient is φ = 10968940.

The previous prime is 10981067. The next prime is 10981109. The reversal of 10981093 is 39018901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39018901 = 239163259.

It is a cyclic number.

It is not a de Polignac number, because 10981093 - 213 = 10972901 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10981013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4603 + ... + 6568.

It is an arithmetic number, because the mean of its divisors is an integer number (2748312).

Almost surely, 210981093 is an apocalyptic number.

It is an amenable number.

10981093 is a deficient number, since it is larger than the sum of its proper divisors (12155).

10981093 is an equidigital number, since it uses as much as digits as its factorization.

10981093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12154.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 10981093 is about 3313.7732270027. The cubic root of 10981093 is about 222.2705154023.

Adding to 10981093 its reverse (39018901), we get a palindrome (49999994).

The spelling of 10981093 in words is "ten million, nine hundred eighty-one thousand, ninety-three".

Divisors: 1 983 11171 10981093