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806052121 = 7115150303
BaseRepresentation
bin110000000010110…
…110000100011001
32002011201200122021
4300002312010121
53122322131441
6211552254441
725655221120
oct6002660431
92064650567
10806052121
11383aa4986
121a5b41421
13cacc1824
14790a2ab7
154ab703d1
hex300b6119

806052121 has 4 divisors (see below), whose sum is σ = 921202432. Its totient is φ = 690901812.

The previous prime is 806052101. The next prime is 806052151. The reversal of 806052121 is 121250608.

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 806052121 - 211 = 806050073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (806052101) 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, 57575145 + ... + 57575158.

It is an arithmetic number, because the mean of its divisors is an integer number (230300608).

Almost surely, 2806052121 is an apocalyptic number.

It is an amenable number.

806052121 is a deficient number, since it is larger than the sum of its proper divisors (115150311).

806052121 is a wasteful number, since it uses less digits than its factorization.

806052121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115150310.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 806052121 is about 28391.0570602787. The cubic root of 806052121 is about 930.6528429540.

The spelling of 806052121 in words is "eight hundred six million, fifty-two thousand, one hundred twenty-one".

Divisors: 1 7 115150303 806052121