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11081197 = 67165391
BaseRepresentation
bin101010010001…
…010111101101
3202211222112201
4222101113231
510314044242
61033301501
7163121461
oct52212755
922758481
1011081197
116289516
123864891
1323aca2a
1416864a1
15e8d4b7
hexa915ed

11081197 has 4 divisors (see below), whose sum is σ = 11246656. Its totient is φ = 10915740.

The previous prime is 11081179. The next prime is 11081209. The reversal of 11081197 is 79118011.

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.

It is a cyclic number.

It is not a de Polignac number, because 11081197 - 211 = 11079149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11081107) 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 3 ways as a sum of consecutive naturals, for example, 82629 + ... + 82762.

It is an arithmetic number, because the mean of its divisors is an integer number (2811664).

Almost surely, 211081197 is an apocalyptic number.

It is an amenable number.

11081197 is a deficient number, since it is larger than the sum of its proper divisors (165459).

11081197 is an equidigital number, since it uses as much as digits as its factorization.

11081197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165458.

The product of its (nonzero) digits is 504, while the sum is 28.

The square root of 11081197 is about 3328.8431924619. The cubic root of 11081197 is about 222.9438817948.

The spelling of 11081197 in words is "eleven million, eighty-one thousand, one hundred ninety-seven".

Divisors: 1 67 165391 11081197