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18032974 = 29079941
BaseRepresentation
bin100010011001…
…0100101001110
31020221011120221
41010302211032
514104023344
61442301554
7306164161
oct104624516
936834527
1018032974
11a1a7493
1260578ba
133974ccb
1518b3184
hex113294e

18032974 has 8 divisors (see below), whose sum is σ = 27082008. Its totient is φ = 9005640.

The previous prime is 18032969. The next prime is 18033011. The reversal of 18032974 is 47923081.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3157 + ... + 6784.

It is an arithmetic number, because the mean of its divisors is an integer number (3385251).

Almost surely, 218032974 is an apocalyptic number.

18032974 is a deficient number, since it is larger than the sum of its proper divisors (9049034).

18032974 is an equidigital number, since it uses as much as digits as its factorization.

18032974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10850.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 18032974 is about 4246.5249322240. The cubic root of 18032974 is about 262.2340720357.

The spelling of 18032974 in words is "eighteen million, thirty-two thousand, nine hundred seventy-four".

Divisors: 1 2 907 1814 9941 19882 9016487 18032974