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2505989060 = 225161377681
BaseRepresentation
bin1001010101011110…
…0101101111000100
320110122110102201122
42111113211233010
520113013122220
61052400013112
7116046361361
oct22527455704
96418412648
102505989060
111076624743
1259b301198
1330c248483
1419ab6d468
15ea010425
hex955e5bc4

2505989060 has 24 divisors (see below), whose sum is σ = 5265907416. Its totient is φ = 1001761280.

The previous prime is 2505989051. The next prime is 2505989063. The reversal of 2505989060 is 609895052.

It can be written as a sum of positive squares in 4 ways, for example, as 154902916 + 2351086144 = 12446^2 + 48488^2 .

It is not an unprimeable number, because it can be changed into a prime (2505989063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6581 + ... + 71100.

It is an arithmetic number, because the mean of its divisors is an integer number (219412809).

Almost surely, 22505989060 is an apocalyptic number.

2505989060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2505989060 is an abundant number, since it is smaller than the sum of its proper divisors (2759918356).

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

2505989060 is a wasteful number, since it uses less digits than its factorization.

2505989060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79303 (or 79301 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 2505989060 is about 50059.8547740602. The cubic root of 2505989060 is about 1358.2917313299.

The spelling of 2505989060 in words is "two billion, five hundred five million, nine hundred eighty-nine thousand, sixty".

Divisors: 1 2 4 5 10 20 1613 3226 6452 8065 16130 32260 77681 155362 310724 388405 776810 1553620 125299453 250598906 501197812 626497265 1252994530 2505989060