Search a number
-
+
2115040255 = 53167203663
BaseRepresentation
bin111111000010000…
…1111001111111111
312110101211011210021
41332010033033333
513312422242010
6545512353011
7103261355056
oct17604171777
95411734707
102115040255
11995981059
124b03a5767
13279255913
14160c8339d
15c5a388da
hex7e10f3ff

2115040255 has 16 divisors (see below), whose sum is σ = 2659037184. Its totient is φ = 1613003040.

The previous prime is 2115040247. The next prime is 2115040259. The reversal of 2115040255 is 5520405112.

It is not a de Polignac number, because 2115040255 - 23 = 2115040247 is a prime.

It is a super-3 number, since 3×21150402553 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115040259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91447 + ... + 112216.

It is an arithmetic number, because the mean of its divisors is an integer number (166189824).

Almost surely, 22115040255 is an apocalyptic number.

2115040255 is a deficient number, since it is larger than the sum of its proper divisors (543996929).

2115040255 is a wasteful number, since it uses less digits than its factorization.

2115040255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203766.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2115040255 is about 45989.5668059615. The cubic root of 2115040255 is about 1283.6290758603.

Adding to 2115040255 its reverse (5520405112), we get a palindrome (7635445367).

The spelling of 2115040255 in words is "two billion, one hundred fifteen million, forty thousand, two hundred fifty-five".

Divisors: 1 5 31 67 155 335 2077 10385 203663 1018315 6313553 13645421 31567765 68227105 423008051 2115040255