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18058497 = 3101107557
BaseRepresentation
bin100010011100…
…0110100000001
31020222110121020
41010320310001
514110332442
61443020053
7306331452
oct104706401
936873536
1018058497
11a214686
12606a629
133983802
142581129
1518ba9ec
hex1138d01

18058497 has 16 divisors (see below), whose sum is σ = 24587712. Its totient is φ = 11787200.

The previous prime is 18058487. The next prime is 18058499. The reversal of 18058497 is 79485081.

It is a cyclic number.

It is not a de Polignac number, because 18058497 - 212 = 18054401 is a prime.

It is a super-2 number, since 2×180584972 = 652218627798018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18058499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32143 + ... + 32699.

It is an arithmetic number, because the mean of its divisors is an integer number (1536732).

Almost surely, 218058497 is an apocalyptic number.

It is an amenable number.

18058497 is a deficient number, since it is larger than the sum of its proper divisors (6529215).

18058497 is a wasteful number, since it uses less digits than its factorization.

18058497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 18058497 is about 4249.5290327282. The cubic root of 18058497 is about 262.3577315247.

The spelling of 18058497 in words is "eighteen million, fifty-eight thousand, four hundred ninety-seven".

Divisors: 1 3 101 107 303 321 557 1671 10807 32421 56257 59599 168771 178797 6019499 18058497