Search a number
-
+
18167053 = 174710399
BaseRepresentation
bin100010101001…
…1010100001101
31021011222111211
41011103110031
514122321203
61445214421
7310263112
oct105232415
937158454
1018167053
11a2891a3
126101411
1339c1048
1425ac909
1518dcc6d
hex115350d

18167053 has 4 divisors (see below), whose sum is σ = 18179200. Its totient is φ = 18154908.

The previous prime is 18167041. The next prime is 18167057. The reversal of 18167053 is 35076181.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35076181 = 75010883.

It is a cyclic number.

It is not a de Polignac number, because 18167053 - 29 = 18166541 is a prime.

It is a super-3 number, since 3×181670533 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18167057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3453 + ... + 6946.

It is an arithmetic number, because the mean of its divisors is an integer number (4544800).

Almost surely, 218167053 is an apocalyptic number.

It is an amenable number.

18167053 is a deficient number, since it is larger than the sum of its proper divisors (12147).

18167053 is a wasteful number, since it uses less digits than its factorization.

18167053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12146.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 18167053 is about 4262.2826044269. The cubic root of 18167053 is about 262.8823899342.

The spelling of 18167053 in words is "eighteen million, one hundred sixty-seven thousand, fifty-three".

Divisors: 1 1747 10399 18167053