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1293089 = 7184727
BaseRepresentation
bin100111011101100100001
32102200210012
410323230201
5312334324
643414305
713663640
oct4735441
92380705
101293089
11803576
12524395
13363755
14259357
151a820e
hex13bb21

1293089 has 4 divisors (see below), whose sum is σ = 1477824. Its totient is φ = 1108356.

The previous prime is 1293077. The next prime is 1293119. The reversal of 1293089 is 9803921.

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 1293089 - 212 = 1288993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1292089) 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, 92357 + ... + 92370.

It is an arithmetic number, because the mean of its divisors is an integer number (369456).

21293089 is an apocalyptic number.

It is an amenable number.

1293089 is a deficient number, since it is larger than the sum of its proper divisors (184735).

1293089 is an equidigital number, since it uses as much as digits as its factorization.

1293089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184734.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1293089 is about 1137.1407124890. The cubic root of 1293089 is about 108.9455441591.

The spelling of 1293089 in words is "one million, two hundred ninety-three thousand, eighty-nine".

Divisors: 1 7 184727 1293089