Search a number
-
+
2825731 = 29139701
BaseRepresentation
bin1010110001111000000011
312022120011201
422301320003
51210410411
6140322031
733006166
oct12617003
95276151
102825731
111660017
12b43317
1377c23c
14537add
153ac3c1
hex2b1e03

2825731 has 8 divisors (see below), whose sum is σ = 2948400. Its totient is φ = 2704800.

The previous prime is 2825701. The next prime is 2825741. The reversal of 2825731 is 1375282.

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

It is a cyclic number.

It is not a de Polignac number, because 2825731 - 213 = 2817539 is a prime.

It is a super-2 number, since 2×28257312 = 15969511368722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2825731.

It is not an unprimeable number, because it can be changed into a prime (2825701) 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, 3681 + ... + 4381.

It is an arithmetic number, because the mean of its divisors is an integer number (368550).

22825731 is an apocalyptic number.

2825731 is a deficient number, since it is larger than the sum of its proper divisors (122669).

2825731 is a wasteful number, since it uses less digits than its factorization.

2825731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869.

The product of its digits is 3360, while the sum is 28.

The square root of 2825731 is about 1680.9910767164. The cubic root of 2825731 is about 141.3764065395.

The spelling of 2825731 in words is "two million, eight hundred twenty-five thousand, seven hundred thirty-one".

Divisors: 1 29 139 701 4031 20329 97439 2825731