Search a number
-
+
2872961 = 713131241
BaseRepresentation
bin1010111101011010000001
312101221221222
422331122001
51213413321
6141324425
733263660
oct12753201
95357858
102872961
111692553
12b66715
137978a0
1454add7
153bb3ab
hex2bd681

2872961 has 16 divisors (see below), whose sum is σ = 3577728. Its totient is φ = 2246400.

The previous prime is 2872937. The next prime is 2872967. The reversal of 2872961 is 1692782.

It is a happy number.

2872961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2872961 - 26 = 2872897 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2872967) 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 15 ways as a sum of consecutive naturals, for example, 11801 + ... + 12041.

It is an arithmetic number, because the mean of its divisors is an integer number (223608).

22872961 is an apocalyptic number.

It is an amenable number.

2872961 is a deficient number, since it is larger than the sum of its proper divisors (704767).

2872961 is a wasteful number, since it uses less digits than its factorization.

2872961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392.

The product of its digits is 12096, while the sum is 35.

The square root of 2872961 is about 1694.9811208388. The cubic root of 2872961 is about 142.1597257106.

The spelling of 2872961 in words is "two million, eight hundred seventy-two thousand, nine hundred sixty-one".

Divisors: 1 7 13 91 131 241 917 1687 1703 3133 11921 21931 31571 220997 410423 2872961