Search a number
-
+
2897086361 = 13222852797
BaseRepresentation
bin1010110010101110…
…0000011110011001
321110220101020100212
42230223200132121
521413123230421
61155250340505
7131535553631
oct25453403631
97426336325
102897086361
111257369954
1268a28a735
133722907b0
141d6a976c1
1511e515e5b
hexacae0799

2897086361 has 4 divisors (see below), whose sum is σ = 3119939172. Its totient is φ = 2674233552.

The previous prime is 2897086349. The next prime is 2897086373. The reversal of 2897086361 is 1636807982.

2897086361 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 an interprime number because it is at equal distance from previous prime (2897086349) and next prime (2897086373).

It can be written as a sum of positive squares in 2 ways, for example, as 1811779225 + 1085307136 = 42565^2 + 32944^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2897086361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2897086301) 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, 111426386 + ... + 111426411.

It is an arithmetic number, because the mean of its divisors is an integer number (779984793).

Almost surely, 22897086361 is an apocalyptic number.

It is an amenable number.

2897086361 is a deficient number, since it is larger than the sum of its proper divisors (222852811).

2897086361 is a wasteful number, since it uses less digits than its factorization.

2897086361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222852810.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 2897086361 is about 53824.5888140355. The cubic root of 2897086361 is about 1425.5654037847.

The spelling of 2897086361 in words is "two billion, eight hundred ninety-seven million, eighty-six thousand, three hundred sixty-one".

Divisors: 1 13 222852797 2897086361