Search a number
-
+
2126151505 = 51015218081
BaseRepresentation
bin111111010111010…
…0111111101010001
312111011201200120001
41332232213331101
513323243322010
6550550450001
7103454663302
oct17656477521
95434650501
102126151505
119a1180105
124b4063901
1327b64621a
141625367a9
15c69d0c3a
hex7eba7f51

2126151505 has 16 divisors (see below), whose sum is σ = 2581908048. Its totient is φ = 1680640000.

The previous prime is 2126151479. The next prime is 2126151539. The reversal of 2126151505 is 5051516212.

It can be written as a sum of positive squares in 8 ways, for example, as 2047761 + 2124103744 = 1431^2 + 46088^2 .

It is not a de Polignac number, because 2126151505 - 221 = 2124054353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259065 + ... + 267145.

It is an arithmetic number, because the mean of its divisors is an integer number (161369253).

Almost surely, 22126151505 is an apocalyptic number.

It is an amenable number.

2126151505 is a deficient number, since it is larger than the sum of its proper divisors (455756543).

2126151505 is a wasteful number, since it uses less digits than its factorization.

2126151505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8708.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 2126151505 is about 46110.2104202529. The cubic root of 2126151505 is about 1285.8729764238.

Adding to 2126151505 its reverse (5051516212), we get a palindrome (7177667717).

The spelling of 2126151505 in words is "two billion, one hundred twenty-six million, one hundred fifty-one thousand, five hundred five".

Divisors: 1 5 101 505 521 2605 8081 40405 52621 263105 816181 4080905 4210201 21051005 425230301 2126151505