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18054038 = 29919109
BaseRepresentation
bin100010011011…
…1101110010110
31020222020111002
41010313232112
514110212123
61442543302
7306312452
oct104675626
936866432
1018054038
11a2112a2
126067b32
133981782
14257d662
1518b9528
hex1137b96

18054038 has 8 divisors (see below), whose sum is σ = 27111360. Its totient is φ = 9016920.

The previous prime is 18054031. The next prime is 18054067. The reversal of 18054038 is 83045081.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18054038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18054031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2573 + ... + 6536.

It is an arithmetic number, because the mean of its divisors is an integer number (3388920).

Almost surely, 218054038 is an apocalyptic number.

18054038 is a deficient number, since it is larger than the sum of its proper divisors (9057322).

18054038 is an equidigital number, since it uses as much as digits as its factorization.

18054038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10102.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 18054038 is about 4249.0043539634. The cubic root of 18054038 is about 262.3361359766.

The spelling of 18054038 in words is "eighteen million, fifty-four thousand, thirty-eight".

Divisors: 1 2 991 1982 9109 18218 9027019 18054038