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BaseRepresentation
bin10111110000101011001101
3102201110011001
4113300223031
53043304220
6341300301
7103641301
oct27605315
912643131
106228685
113574781
122104691
1313a1118
14b81d01
1583080a
hex5f0acd

6228685 has 8 divisors (see below), whose sum is σ = 7497720. Its totient is φ = 4967424.

The previous prime is 6228683. The next prime is 6228709. The reversal of 6228685 is 5868226.

6228685 is a nontrivial binomial coefficient, being equal to C(3530, 2).

It can be written as a sum of positive squares in 4 ways, for example, as 8649 + 6220036 = 93^2 + 2494^2 .

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

It is a 5-Lehmer number, since φ(6228685) divides (6228685-1)5.

It is a cyclic number.

It is not a de Polignac number, because 6228685 - 21 = 6228683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6228683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1 + ... + 3529.

It is an arithmetic number, because the mean of its divisors is an integer number (937215).

Almost surely, 26228685 is an apocalyptic number.

6228685 is the 3529-th triangular number and also the 1765-th hexagonal number.

6228685 is the 1177-th centered nonagonal number.

It is an amenable number.

6228685 is a deficient number, since it is larger than the sum of its proper divisors (1269035).

6228685 is a wasteful number, since it uses less digits than its factorization.

6228685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887.

The product of its digits is 46080, while the sum is 37.

The square root of 6228685 is about 2495.7333591552. The cubic root of 6228685 is about 183.9919360833.

The spelling of 6228685 in words is "six million, two hundred twenty-eight thousand, six hundred eighty-five".

Divisors: 1 5 353 1765 3529 17645 1245737 6228685