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18545085 = 3351310567
BaseRepresentation
bin100011010111…
…1100110111101
31021220012002000
41012233212331
514221420320
61501252513
7313426206
oct106574675
937805060
1018545085
11a517219
126264139
133ac4130
14266a5ad
151964c90
hex11af9bd

18545085 has 32 divisors (see below), whose sum is σ = 35508480. Its totient is φ = 9129024.

The previous prime is 18545077. The next prime is 18545117. The reversal of 18545085 is 58054581.

It is not a de Polignac number, because 18545085 - 23 = 18545077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3529 + ... + 7038.

It is an arithmetic number, because the mean of its divisors is an integer number (1109640).

Almost surely, 218545085 is an apocalyptic number.

18545085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18545085 is a deficient number, since it is larger than the sum of its proper divisors (16963395).

18545085 is a wasteful number, since it uses less digits than its factorization.

18545085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10594 (or 10588 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The square root of 18545085 is about 4306.4004690693. The cubic root of 18545085 is about 264.6932965258.

The spelling of 18545085 in words is "eighteen million, five hundred forty-five thousand, eighty-five".

Divisors: 1 3 5 9 13 15 27 39 45 65 117 135 195 351 585 1755 10567 31701 52835 95103 137371 158505 285309 412113 475515 686855 1236339 1426545 2060565 3709017 6181695 18545085