Search a number
-
+
2800097 = 17915643
BaseRepresentation
bin1010101011100111100001
312021021000022
422223213201
51204100342
6140003225
732541356
oct12534741
95237008
102800097
111642833
12b30515
13770681
1452c62d
153a49d2
hex2ab9e1

2800097 has 4 divisors (see below), whose sum is σ = 2815920. Its totient is φ = 2784276.

The previous prime is 2800079. The next prime is 2800103. The reversal of 2800097 is 7900082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7900082 = 23950041.

It is a cyclic number.

It is not a de Polignac number, because 2800097 - 26 = 2800033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2800397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7643 + ... + 8000.

It is an arithmetic number, because the mean of its divisors is an integer number (703980).

22800097 is an apocalyptic number.

It is an amenable number.

2800097 is a deficient number, since it is larger than the sum of its proper divisors (15823).

2800097 is a wasteful number, since it uses less digits than its factorization.

2800097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15822.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 2800097 is about 1673.3490371109. The cubic root of 2800097 is about 140.9476022129.

The spelling of 2800097 in words is "two million, eight hundred thousand, ninety-seven".

Divisors: 1 179 15643 2800097