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3144309 = 37149729
BaseRepresentation
bin1011111111101001110101
312220202011220
423333221311
51301104214
6151220553
735504040
oct13775165
95822156
103144309
111858403
121077759
1386124c
145bbc57
154219a9
hex2ffa75

3144309 has 8 divisors (see below), whose sum is σ = 4791360. Its totient is φ = 1796736.

The previous prime is 3144301. The next prime is 3144313. The reversal of 3144309 is 9034413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3144309 - 23 = 3144301 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3144301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74844 + ... + 74885.

It is an arithmetic number, because the mean of its divisors is an integer number (598920).

Almost surely, 23144309 is an apocalyptic number.

It is an amenable number.

3144309 is a deficient number, since it is larger than the sum of its proper divisors (1647051).

3144309 is a wasteful number, since it uses less digits than its factorization.

3144309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149739.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 3144309 is about 1773.2199525158. The cubic root of 3144309 is about 146.5013880830.

The spelling of 3144309 in words is "three million, one hundred forty-four thousand, three hundred nine".

Divisors: 1 3 7 21 149729 449187 1048103 3144309