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10991793 = 34318501
BaseRepresentation
bin101001111011…
…100010110001
3202200102220110
4221323202301
510303214133
61031331533
7162300021
oct51734261
922612813
1010991793
11622832a
123820ba9
13237b127
141661a81
15e71c63
hexa7b8b1

10991793 has 8 divisors (see below), whose sum is σ = 14691456. Its totient is φ = 7310000.

The previous prime is 10991791. The next prime is 10991797. The reversal of 10991793 is 39719901.

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 10991793 - 21 = 10991791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10991791) 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, 2958 + ... + 5543.

It is an arithmetic number, because the mean of its divisors is an integer number (1836432).

Almost surely, 210991793 is an apocalyptic number.

It is an amenable number.

10991793 is a deficient number, since it is larger than the sum of its proper divisors (3699663).

10991793 is an equidigital number, since it uses as much as digits as its factorization.

10991793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8935.

The product of its (nonzero) digits is 15309, while the sum is 39.

The square root of 10991793 is about 3315.3873076912. The cubic root of 10991793 is about 222.3426855850.

The spelling of 10991793 in words is "ten million, nine hundred ninety-one thousand, seven hundred ninety-three".

Divisors: 1 3 431 1293 8501 25503 3663931 10991793