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18282023 = 411512953
BaseRepresentation
bin100010110111…
…1011000100111
31021101211012222
41011233120213
514140011043
61451502555
7311252234
oct105573047
937354188
1018282023
11a357611
126157a5b
133a31486
1425dc78b
151911d68
hex116f627

18282023 has 8 divisors (see below), whose sum is σ = 18858336. Its totient is φ = 17712000.

The previous prime is 18282007. The next prime is 18282029. The reversal of 18282023 is 32028281.

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

It is not a de Polignac number, because 18282023 - 24 = 18282007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18281983 and 18282001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18282029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4715 + ... + 7667.

It is an arithmetic number, because the mean of its divisors is an integer number (2357292).

Almost surely, 218282023 is an apocalyptic number.

18282023 is a deficient number, since it is larger than the sum of its proper divisors (576313).

18282023 is a wasteful number, since it uses less digits than its factorization.

18282023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 18282023 is about 4275.7482386127. The cubic root of 18282023 is about 263.4357736711.

The spelling of 18282023 in words is "eighteen million, two hundred eighty-two thousand, twenty-three".

Divisors: 1 41 151 2953 6191 121073 445903 18282023