Search a number
-
+
2680791 = 31814937
BaseRepresentation
bin1010001110011111010111
312001012100120
422032133113
51141241131
6133243023
731533501
oct12163727
95035316
102680791
111571133
12a93473
1372b289
144dad71
1537e496
hex28e7d7

2680791 has 8 divisors (see below), whose sum is σ = 3594864. Its totient is φ = 1776960.

The previous prime is 2680771. The next prime is 2680801. The reversal of 2680791 is 1970862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2680791 - 211 = 2678743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2680721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1926 + ... + 3011.

It is an arithmetic number, because the mean of its divisors is an integer number (449358).

22680791 is an apocalyptic number.

2680791 is a deficient number, since it is larger than the sum of its proper divisors (914073).

2680791 is a wasteful number, since it uses less digits than its factorization.

2680791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 2680791 is about 1637.3121266271. The cubic root of 2680791 is about 138.9166555211.

The spelling of 2680791 in words is "two million, six hundred eighty thousand, seven hundred ninety-one".

Divisors: 1 3 181 543 4937 14811 893597 2680791