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18482101 = 111680191
BaseRepresentation
bin100011010000…
…0001110110101
31021202222200021
41012200032311
514212411401
61500045141
7313044451
oct106401665
937688607
1018482101
11a483970
1262337b1
133aa1571
142651661
1519512a1
hex11a03b5

18482101 has 4 divisors (see below), whose sum is σ = 20162304. Its totient is φ = 16801900.

The previous prime is 18482099. The next prime is 18482119. The reversal of 18482101 is 10128481.

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.

It is a cyclic number.

It is not a de Polignac number, because 18482101 - 21 = 18482099 is a prime.

It is a super-3 number, since 3×184821013 (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 (18482141) 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, 840085 + ... + 840106.

It is an arithmetic number, because the mean of its divisors is an integer number (5040576).

Almost surely, 218482101 is an apocalyptic number.

18482101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18482101 is a deficient number, since it is larger than the sum of its proper divisors (1680203).

18482101 is a wasteful number, since it uses less digits than its factorization.

18482101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680202.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 18482101 is about 4299.0814135115. The cubic root of 18482101 is about 264.3933005642.

The spelling of 18482101 in words is "eighteen million, four hundred eighty-two thousand, one hundred one".

Divisors: 1 11 1680191 18482101