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6001009 = 7857287
BaseRepresentation
bin10110111001000101110001
3102021212211121
4112321011301
53014013014
6332342241
7102002440
oct26710561
912255747
106001009
113429713
122014981
1313215c1
14b22d57
157d8124
hex5b9171

6001009 has 4 divisors (see below), whose sum is σ = 6858304. Its totient is φ = 5143716.

The previous prime is 6000977. The next prime is 6001013. The reversal of 6001009 is 9001006.

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 6001009 - 25 = 6000977 is a prime.

6001009 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6000983 and 6001001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6001019) 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, 428637 + ... + 428650.

It is an arithmetic number, because the mean of its divisors is an integer number (1714576).

Almost surely, 26001009 is an apocalyptic number.

It is an amenable number.

6001009 is a deficient number, since it is larger than the sum of its proper divisors (857295).

6001009 is an equidigital number, since it uses as much as digits as its factorization.

6001009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857294.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 6001009 is about 2449.6956953875. The cubic root of 6001009 is about 181.7222446827.

The spelling of 6001009 in words is "six million, one thousand, nine".

Divisors: 1 7 857287 6001009