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3391345 = 5897621
BaseRepresentation
bin1100111011111101110001
320101022001101
430323331301
51332010340
6200404401
740553206
oct14737561
96338041
103391345
111a06a71
121176701
13919819
14643cad
1546ec9a
hex33bf71

3391345 has 8 divisors (see below), whose sum is σ = 4115880. Its totient is φ = 2682240.

The previous prime is 3391343. The next prime is 3391351. The reversal of 3391345 is 5431933.

It can be written as a sum of positive squares in 4 ways, for example, as 456976 + 2934369 = 676^2 + 1713^2 .

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

It is not a de Polignac number, because 3391345 - 21 = 3391343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3391343) 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, 3366 + ... + 4255.

It is an arithmetic number, because the mean of its divisors is an integer number (514485).

Almost surely, 23391345 is an apocalyptic number.

It is an amenable number.

3391345 is a deficient number, since it is larger than the sum of its proper divisors (724535).

3391345 is an equidigital number, since it uses as much as digits as its factorization.

3391345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7715.

The product of its digits is 4860, while the sum is 28.

The square root of 3391345 is about 1841.5604795933. The cubic root of 3391345 is about 150.2417582917.

It can be divided in two parts, 33 and 91345, that added together give a triangular number (91378 = T427).

The spelling of 3391345 in words is "three million, three hundred ninety-one thousand, three hundred forty-five".

Divisors: 1 5 89 445 7621 38105 678269 3391345