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18227082 = 236745341
BaseRepresentation
bin100010110000…
…1111110001010
31021022000212010
41011201332022
514131231312
61450400350
7310633116
oct105417612
937260763
1018227082
11a31a305
1261300b6
133a12473
1425c6746
15190093c
hex1161f8a

18227082 has 16 divisors (see below), whose sum is σ = 36999072. Its totient is φ = 5984880.

The previous prime is 18227081. The next prime is 18227087. The reversal of 18227082 is 28072281.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18227081) 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, 22269 + ... + 23072.

It is an arithmetic number, because the mean of its divisors is an integer number (2312442).

Almost surely, 218227082 is an apocalyptic number.

18227082 is an abundant number, since it is smaller than the sum of its proper divisors (18771990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18227082 is a wasteful number, since it uses less digits than its factorization.

18227082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45413.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 18227082 is about 4269.3186810075. The cubic root of 18227082 is about 263.1716171357.

The spelling of 18227082 in words is "eighteen million, two hundred twenty-seven thousand, eighty-two".

Divisors: 1 2 3 6 67 134 201 402 45341 90682 136023 272046 3037847 6075694 9113541 18227082