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3117289 = 7974591
BaseRepresentation
bin1011111001000011101001
312212101010011
423321003221
51244223124
6150451521
735332210
oct13710351
95771104
103117289
11183a07a
121063ba1
13851b66
145b2077
15418994
hex2f90e9

3117289 has 8 divisors (see below), whose sum is σ = 3600128. Its totient is φ = 2643840.

The previous prime is 3117281. The next prime is 3117293. The reversal of 3117289 is 9827113.

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

It is a cyclic number.

It is not a de Polignac number, because 3117289 - 23 = 3117281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3117289.

It is not an unprimeable number, because it can be changed into a prime (3117281) 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, 1617 + ... + 2974.

It is an arithmetic number, because the mean of its divisors is an integer number (450016).

Almost surely, 23117289 is an apocalyptic number.

It is an amenable number.

3117289 is a deficient number, since it is larger than the sum of its proper divisors (482839).

3117289 is an equidigital number, since it uses as much as digits as its factorization.

3117289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4695.

The product of its digits is 3024, while the sum is 31.

The square root of 3117289 is about 1765.5846057326. The cubic root of 3117289 is about 146.0805366633.

The spelling of 3117289 in words is "three million, one hundred seventeen thousand, two hundred eighty-nine".

Divisors: 1 7 97 679 4591 32137 445327 3117289