Search a number
-
+
2195057 = 17129121
BaseRepresentation
bin1000010111111001110001
311010112001102
420113321301
51030220212
6115014145
724441404
oct10277161
94115042
102195057
11126a1a7
1289a355
135bb167
14411d3b
152d55c2
hex217e71

2195057 has 4 divisors (see below), whose sum is σ = 2324196. Its totient is φ = 2065920.

The previous prime is 2195047. The next prime is 2195059. The reversal of 2195057 is 7505912.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1132096 + 1062961 = 1064^2 + 1031^2 .

It is a cyclic number.

It is not a de Polignac number, because 2195057 - 26 = 2194993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2195059) 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, 64544 + ... + 64577.

It is an arithmetic number, because the mean of its divisors is an integer number (581049).

22195057 is an apocalyptic number.

It is an amenable number.

2195057 is a deficient number, since it is larger than the sum of its proper divisors (129139).

2195057 is a wasteful number, since it uses less digits than its factorization.

2195057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129138.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 2195057 is about 1481.5724754463. The cubic root of 2195057 is about 129.9616652254.

The spelling of 2195057 in words is "two million, one hundred ninety-five thousand, fifty-seven".

Divisors: 1 17 129121 2195057