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2215040255 = 51848123971
BaseRepresentation
bin1000010000000110…
…1101010011111111
312201100222200222222
42010001231103333
514014022242010
61003443555555
7105614350211
oct20401552377
95640880888
102215040255
11a3737258a
1251998bbbb
13293b9940c
141702745b1
15ce6dd355
hex8406d4ff

2215040255 has 8 divisors (see below), whose sum is σ = 2658303024. Its totient is φ = 1771862400.

The previous prime is 2215040251. The next prime is 2215040257. The reversal of 2215040255 is 5520405122.

2215040255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2215040255 - 22 = 2215040251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215040251) 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, 80420 + ... + 104390.

It is an arithmetic number, because the mean of its divisors is an integer number (332287878).

Almost surely, 22215040255 is an apocalyptic number.

2215040255 is a deficient number, since it is larger than the sum of its proper divisors (443262769).

2215040255 is a wasteful number, since it uses less digits than its factorization.

2215040255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42457.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2215040255 is about 47064.2141653295. The cubic root of 2215040255 is about 1303.5485406249.

Adding to 2215040255 its reverse (5520405122), we get a palindrome (7735445377).

The spelling of 2215040255 in words is "two billion, two hundred fifteen million, forty thousand, two hundred fifty-five".

Divisors: 1 5 18481 23971 92405 119855 443008051 2215040255