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11506801 = 16768903
BaseRepresentation
bin101011111001…
…010001110001
3210122121100211
4223321101301
510421204201
61050344121
7166543345
oct53712161
923577324
1011506801
11654a259
123a2b041
1324cb677
141757625
151024651
hexaf9471

11506801 has 4 divisors (see below), whose sum is σ = 11575872. Its totient is φ = 11437732.

The previous prime is 11506787. The next prime is 11506811. The reversal of 11506801 is 10860511.

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: 10860511 = 16765033.

It is a cyclic number.

It is not a de Polignac number, because 11506801 - 25 = 11506769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11506811) 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, 34285 + ... + 34618.

It is an arithmetic number, because the mean of its divisors is an integer number (2893968).

Almost surely, 211506801 is an apocalyptic number.

It is an amenable number.

11506801 is a deficient number, since it is larger than the sum of its proper divisors (69071).

11506801 is an equidigital number, since it uses as much as digits as its factorization.

11506801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69070.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 11506801 is about 3392.1675960955. The cubic root of 11506801 is about 225.7623588673.

The spelling of 11506801 in words is "eleven million, five hundred six thousand, eight hundred one".

Divisors: 1 167 68903 11506801