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18482137 = 48737951
BaseRepresentation
bin100011010000…
…0001111011001
31021202222201121
41012200033121
514212412022
61500045241
7313044532
oct106401731
937688647
1018482137
11a4839a3
126233821
133aa159b
142651689
1519512c7
hex11a03d9

18482137 has 4 divisors (see below), whose sum is σ = 18520576. Its totient is φ = 18443700.

The previous prime is 18482119. The next prime is 18482141. The reversal of 18482137 is 73128481.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 73128481 = 179408539.

It is a cyclic number.

It is not a de Polignac number, because 18482137 - 211 = 18480089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18482237) by changing a digit.

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, 18489 + ... + 19462.

It is an arithmetic number, because the mean of its divisors is an integer number (4630144).

Almost surely, 218482137 is an apocalyptic number.

It is an amenable number.

18482137 is a deficient number, since it is larger than the sum of its proper divisors (38439).

18482137 is an equidigital number, since it uses as much as digits as its factorization.

18482137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38438.

The product of its digits is 10752, while the sum is 34.

The square root of 18482137 is about 4299.0856004504. The cubic root of 18482137 is about 264.3934722286.

The spelling of 18482137 in words is "eighteen million, four hundred eighty-two thousand, one hundred thirty-seven".

Divisors: 1 487 37951 18482137