Search a number
-
+
2680919 = 19141101
BaseRepresentation
bin1010001110100001010111
312001012112022
422032201113
51141242134
6133243355
731534043
oct12164127
95035468
102680919
11157123a
12a9355b
1372b357
144db023
1537e52e
hex28e857

2680919 has 4 divisors (see below), whose sum is σ = 2822040. Its totient is φ = 2539800.

The previous prime is 2680907. The next prime is 2680943. The reversal of 2680919 is 9190862.

2680919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2680919 - 212 = 2676823 is a prime.

It is a super-2 number, since 2×26809192 = 14374653369122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2680969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70532 + ... + 70569.

It is an arithmetic number, because the mean of its divisors is an integer number (705510).

22680919 is an apocalyptic number.

2680919 is a deficient number, since it is larger than the sum of its proper divisors (141121).

2680919 is a wasteful number, since it uses less digits than its factorization.

2680919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141120.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 2680919 is about 1637.3512146146. The cubic root of 2680919 is about 138.9188664418.

The spelling of 2680919 in words is "two million, six hundred eighty thousand, nine hundred nineteen".

Divisors: 1 19 141101 2680919