Search a number
-
+
228413605 = 578973327
BaseRepresentation
bin11011001110101…
…01000010100101
3120220210121120011
431213111002211
5431433213410
634355410221
75442324610
oct1547250245
9526717504
10228413605
11107a2a582
12645b3971
13384251a4
142249b177
15150bd18a
hexd9d50a5

228413605 has 16 divisors (see below), whose sum is σ = 316776960. Its totient is φ = 154864512.

The previous prime is 228413597. The next prime is 228413629. The reversal of 228413605 is 506314822.

228413605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 228413605 - 23 = 228413597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33549 + ... + 39778.

It is an arithmetic number, because the mean of its divisors is an integer number (19798560).

Almost surely, 2228413605 is an apocalyptic number.

It is an amenable number.

228413605 is a deficient number, since it is larger than the sum of its proper divisors (88363355).

228413605 is an equidigital number, since it uses as much as digits as its factorization.

228413605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73428.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 228413605 is about 15113.3584950533. The cubic root of 228413605 is about 611.2806606930.

The spelling of 228413605 in words is "two hundred twenty-eight million, four hundred thirteen thousand, six hundred five".

Divisors: 1 5 7 35 89 445 623 3115 73327 366635 513289 2566445 6526103 32630515 45682721 228413605