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18533034 = 2321379201
BaseRepresentation
bin100011010110…
…0101010101010
31021212120112200
41012230222222
514221024114
61501121030
7313346112
oct106545252
937776480
1018533034
11a509163
126259176
133abb7c0
142666042
151961409
hex11acaaa

18533034 has 24 divisors (see below), whose sum is σ = 43244292. Its totient is φ = 5702400.

The previous prime is 18533033. The next prime is 18533083. The reversal of 18533034 is 43033581.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18533025 + 9 = 4305^2 + 3^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18532989 and 18533007.

It is not an unprimeable number, because it can be changed into a prime (18533033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39367 + ... + 39834.

Almost surely, 218533034 is an apocalyptic number.

18533034 is an abundant number, since it is smaller than the sum of its proper divisors (24711258).

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

18533034 is a wasteful number, since it uses less digits than its factorization.

18533034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79222 (or 79219 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 18533034 is about 4305.0010452960. The cubic root of 18533034 is about 264.6359496132.

The spelling of 18533034 in words is "eighteen million, five hundred thirty-three thousand, thirty-four".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 79201 158402 237603 475206 712809 1029613 1425618 2059226 3088839 6177678 9266517 18533034