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11031197 = 103107099
BaseRepresentation
bin101010000101…
…001010011101
3202202102221212
4222011022131
510310444242
61032234205
7162522632
oct52051235
922672855
1011031197
1162549a1
12383b965
132393048
141672189
15e7d782
hexa8529d

11031197 has 4 divisors (see below), whose sum is σ = 11138400. Its totient is φ = 10923996.

The previous prime is 11031193. The next prime is 11031221. The reversal of 11031197 is 79113011.

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: 79113011 = 355922229.

It is a cyclic number.

It is not a de Polignac number, because 11031197 - 22 = 11031193 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 (11031193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53447 + ... + 53652.

It is an arithmetic number, because the mean of its divisors is an integer number (2784600).

Almost surely, 211031197 is an apocalyptic number.

It is an amenable number.

11031197 is a deficient number, since it is larger than the sum of its proper divisors (107203).

11031197 is a wasteful number, since it uses less digits than its factorization.

11031197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107202.

The product of its (nonzero) digits is 189, while the sum is 23.

The square root of 11031197 is about 3321.3245851618. The cubic root of 11031197 is about 222.6080576002.

The spelling of 11031197 in words is "eleven million, thirty-one thousand, one hundred ninety-seven".

Divisors: 1 103 107099 11031197