Search a number
-
+
8128097 = 10397823
BaseRepresentation
bin11111000000011001100001
3120021221122122
4133000121201
54040044342
6450114025
7126042035
oct37003141
916257578
108128097
11465183a
12287b915
1318b7833
1411181c5
15aa84d2
hex7c0661

8128097 has 4 divisors (see below), whose sum is σ = 8136960. Its totient is φ = 8119236.

The previous prime is 8128069. The next prime is 8128111. The reversal of 8128097 is 7908218.

It is a happy number.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8128097 - 28 = 8127841 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8128037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2873 + ... + 4950.

It is an arithmetic number, because the mean of its divisors is an integer number (2034240).

Almost surely, 28128097 is an apocalyptic number.

It is an amenable number.

8128097 is a deficient number, since it is larger than the sum of its proper divisors (8863).

8128097 is a wasteful number, since it uses less digits than its factorization.

8128097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8862.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 8128097 is about 2850.9817607273. The cubic root of 8128097 is about 201.0618276338.

The spelling of 8128097 in words is "eight million, one hundred twenty-eight thousand, ninety-seven".

Divisors: 1 1039 7823 8128097