Search a number
-
+
2228615 = 517157167
BaseRepresentation
bin1000100000000110000111
311012020002022
420200012013
51032303430
6115433355
724641264
oct10400607
94166068
102228615
111292434
128b585b
1360050c
1442026b
152e04e5
hex220187

2228615 has 16 divisors (see below), whose sum is σ = 2866752. Its totient is φ = 1657344.

The previous prime is 2228591. The next prime is 2228657. The reversal of 2228615 is 5168222.

It is a cyclic number.

It is not a de Polignac number, because 2228615 - 210 = 2227591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13262 + ... + 13428.

It is an arithmetic number, because the mean of its divisors is an integer number (179172).

22228615 is an apocalyptic number.

2228615 is a deficient number, since it is larger than the sum of its proper divisors (638137).

2228615 is a wasteful number, since it uses less digits than its factorization.

2228615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346.

The product of its digits is 1920, while the sum is 26.

The square root of 2228615 is about 1492.8546479815. The cubic root of 2228615 is about 130.6206026312.

The spelling of 2228615 in words is "two million, two hundred twenty-eight thousand, six hundred fifteen".

Divisors: 1 5 17 85 157 167 785 835 2669 2839 13345 14195 26219 131095 445723 2228615