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18067982425 = 52722719297
BaseRepresentation
bin10000110100111011…
…111000100001011001
31201122012002121101021
4100310323320201121
5244000400414200
612144511322441
71206512213413
oct206473704131
951565077337
1018067982425
1177319a5689
123602b20421
13191c34397c
14c358859b3
1570b33641a
hex434ef8859

18067982425 has 6 divisors (see below), whose sum is σ = 22404298238. Its totient is φ = 14454385920.

The previous prime is 18067982407. The next prime is 18067982461. The reversal of 18067982425 is 52428976081.

It can be written as a sum of positive squares in 3 ways, for example, as 594579456 + 17473402969 = 24384^2 + 132187^2 .

It is not a de Polignac number, because 18067982425 - 215 = 18067949657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 361359624 + ... + 361359673.

Almost surely, 218067982425 is an apocalyptic number.

It is an amenable number.

18067982425 is a deficient number, since it is larger than the sum of its proper divisors (4336315813).

18067982425 is an equidigital number, since it uses as much as digits as its factorization.

18067982425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722719307 (or 722719302 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 18067982425 in words is "eighteen billion, sixty-seven million, nine hundred eighty-two thousand, four hundred twenty-five".

Divisors: 1 5 25 722719297 3613596485 18067982425