Search a number
-
+
2830872636 = 223278635351
BaseRepresentation
bin1010100010111011…
…1011000000111100
321022021210020012200
42220232323000330
521244200411021
61144523231500
7130103006664
oct25056730074
97267706180
102830872636
111222a54569
12670078590
13361649487
141cbd7d1a4
151187d7126
hexa8bbb03c

2830872636 has 18 divisors (see below), whose sum is σ = 7155817032. Its totient is φ = 943624200.

The previous prime is 2830872631. The next prime is 2830872647. The reversal of 2830872636 is 6362780382.

2830872636 is a `hidden beast` number, since 2 + 8 + 3 + 0 + 8 + 7 + 2 + 636 = 666.

2830872636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 2830872591 and 2830872600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2830872631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39317640 + ... + 39317711.

Almost surely, 22830872636 is an apocalyptic number.

It is an amenable number.

2830872636 is an abundant number, since it is smaller than the sum of its proper divisors (4324944396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2830872636 is a wasteful number, since it uses less digits than its factorization.

2830872636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78635361 (or 78635356 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 2830872636 is about 53205.9454948411. The cubic root of 2830872636 is about 1414.6210301698.

The spelling of 2830872636 in words is "two billion, eight hundred thirty million, eight hundred seventy-two thousand, six hundred thirty-six".

Divisors: 1 2 3 4 6 9 12 18 36 78635351 157270702 235906053 314541404 471812106 707718159 943624212 1415436318 2830872636