Search a number
-
+
2215000511 = 19577113143
BaseRepresentation
bin1000010000000110…
…0011100110111111
312201100220200110222
42010001203212333
514014020004021
61003443051555
7105614123303
oct20401434677
95640820428
102215000511
11a37345739
12519970bbb
13293b842b9
14170263d03
15ce6d16ab
hex840639bf

2215000511 has 4 divisors (see below), whose sum is σ = 2215133232. Its totient is φ = 2214867792.

The previous prime is 2215000493. The next prime is 2215000547. The reversal of 2215000511 is 1150005122.

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

It is a cyclic number.

It is not a de Polignac number, because 2215000511 - 218 = 2214738367 is a prime.

It is a super-2 number, since 2×22150005112 = 9812454527460522242, 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 2215000511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215000111) 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, 36995 + ... + 76148.

It is an arithmetic number, because the mean of its divisors is an integer number (553783308).

Almost surely, 22215000511 is an apocalyptic number.

2215000511 is a deficient number, since it is larger than the sum of its proper divisors (132721).

2215000511 is a wasteful number, since it uses less digits than its factorization.

2215000511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132720.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 2215000511 is about 47063.7919318025. The cubic root of 2215000511 is about 1303.5407441461.

Adding to 2215000511 its reverse (1150005122), we get a palindrome (3365005633).

The spelling of 2215000511 in words is "two billion, two hundred fifteen million, five hundred eleven", and thus it is an aban number.

Divisors: 1 19577 113143 2215000511