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16242907 = 24116737
BaseRepresentation
bin111101111101…
…100011011011
31010120020002011
4331331203123
513124233112
61340050351
7255030262
oct75754333
933506064
1016242907
11919459a
1255339b7
1334992b5
14222b5d9
15165caa7
hexf7d8db

16242907 has 4 divisors (see below), whose sum is σ = 16252056. Its totient is φ = 16233760.

The previous prime is 16242887. The next prime is 16242913. The reversal of 16242907 is 70924261.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-16242907 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16242007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958 + ... + 5779.

It is an arithmetic number, because the mean of its divisors is an integer number (4063014).

Almost surely, 216242907 is an apocalyptic number.

16242907 is a deficient number, since it is larger than the sum of its proper divisors (9149).

16242907 is an equidigital number, since it uses as much as digits as its factorization.

16242907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9148.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 16242907 is about 4030.2489997518. The cubic root of 16242907 is about 253.2529925679.

The spelling of 16242907 in words is "sixteen million, two hundred forty-two thousand, nine hundred seven".

Divisors: 1 2411 6737 16242907