Search a number
-
+
2505532480 = 26511264709
BaseRepresentation
bin1001010101010111…
…0110010001000000
320110121121020102021
42111111312101000
520112404014410
61052342131224
7116042450263
oct22525662100
96417536367
102505532480
111076342700
1259b120b14
1330c1186c9
1419aa90cda
15e9e6eeda
hex95576440

2505532480 has 84 divisors (see below), whose sum is σ = 6558099660. Its totient is φ = 911088640.

The previous prime is 2505532453. The next prime is 2505532487. The reversal of 2505532480 is 842355052.

It can be written as a sum of positive squares in 2 ways, for example, as 1589138496 + 916393984 = 39864^2 + 30272^2 .

It is not an unprimeable number, because it can be changed into a prime (2505532487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6366 + ... + 71074.

It is an arithmetic number, because the mean of its divisors is an integer number (78072615).

Almost surely, 22505532480 is an apocalyptic number.

2505532480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2505532480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3279049830).

2505532480 is an abundant number, since it is smaller than the sum of its proper divisors (4052567180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2505532480 is a wasteful number, since it uses less digits than its factorization.

2505532480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64748 (or 64727 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 2505532480 is about 50055.2942254863. The cubic root of 2505532480 is about 1358.2092347598.

The spelling of 2505532480 in words is "two billion, five hundred five million, five hundred thirty-two thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 121 160 176 220 242 320 352 440 484 605 704 880 968 1210 1760 1936 2420 3520 3872 4840 7744 9680 19360 38720 64709 129418 258836 323545 517672 647090 711799 1035344 1294180 1423598 2070688 2588360 2847196 3558995 4141376 5176720 5694392 7117990 7829789 10353440 11388784 14235980 15659578 20706880 22777568 28471960 31319156 39148945 45555136 56943920 62638312 78297890 113887840 125276624 156595780 227775680 250553248 313191560 501106496 626383120 1252766240 2505532480