Search a number
-
+
2856830223 = 313292525933
BaseRepresentation
bin1010101001000111…
…1100010100001111
321101002122000022210
42222101330110033
521322322031343
61151251441503
7130536441042
oct25221742417
97332560283
102856830223
111236673915
126788b6293
13366b374b0
141d15b8c59
1511ac13333
hexaa47c50f

2856830223 has 16 divisors (see below), whose sum is σ = 4243569120. Its totient is φ = 1697426304.

The previous prime is 2856830167. The next prime is 2856830227. The reversal of 2856830223 is 3220386582.

It is a happy number.

2856830223 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2856830223 - 28 = 2856829967 is a prime.

It is a super-2 number, since 2×28568302232 = 16322957846092459458, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856830227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1261836 + ... + 1264097.

It is an arithmetic number, because the mean of its divisors is an integer number (265223070).

Almost surely, 22856830223 is an apocalyptic number.

2856830223 is a deficient number, since it is larger than the sum of its proper divisors (1386738897).

2856830223 is a wasteful number, since it uses less digits than its factorization.

2856830223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525978.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 2856830223 is about 53449.3238778565. The cubic root of 2856830223 is about 1418.9316541052.

The spelling of 2856830223 in words is "two billion, eight hundred fifty-six million, eight hundred thirty thousand, two hundred twenty-three".

Divisors: 1 3 13 29 39 87 377 1131 2525933 7577799 32837129 73252057 98511387 219756171 952276741 2856830223