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18485101 = 103197911
BaseRepresentation
bin100011010000…
…0111101101101
31021210010210101
41012200331231
514213010401
61500111101
7313056265
oct106407555
937703711
1018485101
11a486148
126235491
133aa2a3b
1426527a5
151952101
hex11a0f6d

18485101 has 8 divisors (see below), whose sum is σ = 18779904. Its totient is φ = 18192720.

The previous prime is 18485087. The next prime is 18485107. The reversal of 18485101 is 10158481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18485101 - 217 = 18354029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18485101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18485107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19836 + ... + 20746.

It is an arithmetic number, because the mean of its divisors is an integer number (2347488).

Almost surely, 218485101 is an apocalyptic number.

It is an amenable number.

18485101 is a deficient number, since it is larger than the sum of its proper divisors (294803).

18485101 is a wasteful number, since it uses less digits than its factorization.

18485101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211.

The product of its (nonzero) digits is 1280, while the sum is 28.

The square root of 18485101 is about 4299.4303110994. The cubic root of 18485101 is about 264.4076051607.

The spelling of 18485101 in words is "eighteen million, four hundred eighty-five thousand, one hundred one".

Divisors: 1 103 197 911 20291 93833 179467 18485101