Search a number
-
+
2685872 = 24723981
BaseRepresentation
bin1010001111101110110000
312001110022202
422033232300
51141421442
6133322332
731554350
oct12175660
95043282
102685872
111574a32
12a963a8
13730697
144dcb60
15380c32
hex28fbb0

2685872 has 20 divisors (see below), whose sum is σ = 5947536. Its totient is φ = 1151040.

The previous prime is 2685827. The next prime is 2685877. The reversal of 2685872 is 2785862.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2685877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11879 + ... + 12102.

22685872 is an apocalyptic number.

It is an amenable number.

2685872 is an abundant number, since it is smaller than the sum of its proper divisors (3261664).

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

2685872 is a wasteful number, since it uses less digits than its factorization.

2685872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23996 (or 23990 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 2685872 is about 1638.8630205115. The cubic root of 2685872 is about 139.0043647164.

The spelling of 2685872 in words is "two million, six hundred eighty-five thousand, eight hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 23981 47962 95924 167867 191848 335734 383696 671468 1342936 2685872