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18050973 = 36016991
BaseRepresentation
bin100010011011…
…0111110011101
31020222002021120
41010312332131
514110112343
61442521153
7306300513
oct104667635
936862246
1018050973
11a209a66
1260661b9
133980265
14257c4b3
1518b8683
hex1136f9d

18050973 has 4 divisors (see below), whose sum is σ = 24067968. Its totient is φ = 12033980.

The previous prime is 18050971. The next prime is 18050987. The reversal of 18050973 is 37905081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18050973 - 21 = 18050971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18050971) 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, 3008493 + ... + 3008498.

It is an arithmetic number, because the mean of its divisors is an integer number (6016992).

Almost surely, 218050973 is an apocalyptic number.

It is an amenable number.

18050973 is a deficient number, since it is larger than the sum of its proper divisors (6016995).

18050973 is an equidigital number, since it uses as much as digits as its factorization.

18050973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6016994.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 18050973 is about 4248.6436659245. The cubic root of 18050973 is about 262.3212896993.

The spelling of 18050973 in words is "eighteen million, fifty thousand, nine hundred seventy-three".

Divisors: 1 3 6016991 18050973