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18483762025 = 52271912
BaseRepresentation
bin10001001101101101…
…111101001101101001
31202201011110101202201
4101031231331031221
5300323320341100
612254043100201
71223021246011
oct211555751551
952634411681
1018483762025
117925668a93
1236ba211661
13198751b6c1
14c74b96c41
15732ab536a
hex44db7d369

18483762025 has 9 divisors (see below), whose sum is σ = 22920707863. Its totient is φ = 14786465800.

The previous prime is 18483762013. The next prime is 18483762043. The reversal of 18483762025 is 52026738481.

The square root of 18483762025 is 135955.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6654154329 + 11829607696 = 81573^2 + 108764^2 .

It is not a de Polignac number, because 18483762025 - 211 = 18483759977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 666180 + ... + 693370.

Almost surely, 218483762025 is an apocalyptic number.

18483762025 is the 135955-th square number.

18483762025 is the 67978-th centered octagonal number.

It is an amenable number.

18483762025 is a deficient number, since it is larger than the sum of its proper divisors (4436945838).

18483762025 is an frugal number, since it uses more digits than its factorization.

18483762025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54392 (or 27196 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 18483762025 in words is "eighteen billion, four hundred eighty-three million, seven hundred sixty-two thousand, twenty-five".

Divisors: 1 5 25 27191 135955 679775 739350481 3696752405 18483762025