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1128097 = 3473251
BaseRepresentation
bin100010011011010100001
32010022110101
410103122201
5242044342
640102401
712405625
oct4233241
92108411
101128097
11700613
12464a01
13306619
14215185
151743b7
hex1136a1

1128097 has 4 divisors (see below), whose sum is σ = 1131696. Its totient is φ = 1124500.

The previous prime is 1128091. The next prime is 1128107. The reversal of 1128097 is 7908211.

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: 7908211 = 67118033.

It is a cyclic number.

It is not a de Polignac number, because 1128097 - 23 = 1128089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1128091) 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, 1279 + ... + 1972.

It is an arithmetic number, because the mean of its divisors is an integer number (282924).

21128097 is an apocalyptic number.

It is an amenable number.

1128097 is a deficient number, since it is larger than the sum of its proper divisors (3599).

1128097 is an equidigital number, since it uses as much as digits as its factorization.

1128097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3598.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 1128097 is about 1062.1191081983. The cubic root of 1128097 is about 104.0995410376.

The spelling of 1128097 in words is "one million, one hundred twenty-eight thousand, ninety-seven".

Divisors: 1 347 3251 1128097