Search a number
-
+
2829681 = 33104803
BaseRepresentation
bin1010110010110101110001
312022202121000
422302311301
51211022211
6140352213
733023541
oct12626561
95282530
102829681
111662a88
12b45669
13780c8a
14539321
153ad656
hex2b2d71

2829681 has 8 divisors (see below), whose sum is σ = 4192160. Its totient is φ = 1886436.

The previous prime is 2829679. The next prime is 2829683. The reversal of 2829681 is 1869282.

It is an interprime number because it is at equal distance from previous prime (2829679) and next prime (2829683).

It is not a de Polignac number, because 2829681 - 21 = 2829679 is a prime.

It is a super-2 number, since 2×28296812 = 16014189123522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2829683) 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, 52375 + ... + 52428.

It is an arithmetic number, because the mean of its divisors is an integer number (524020).

22829681 is an apocalyptic number.

It is an amenable number.

2829681 is a deficient number, since it is larger than the sum of its proper divisors (1362479).

2829681 is a wasteful number, since it uses less digits than its factorization.

2829681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104812 (or 104806 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 2829681 is about 1682.1655685455. The cubic root of 2829681 is about 141.4422510709.

The spelling of 2829681 in words is "two million, eight hundred twenty-nine thousand, six hundred eighty-one".

Divisors: 1 3 9 27 104803 314409 943227 2829681