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16128313 = 23897879
BaseRepresentation
bin111101100001…
…100100111001
31010100101212221
4331201210321
513112101223
61333404041
7254042215
oct75414471
933311787
1016128313
119116493
125499621
1334590a6
1421db945
151638b5d
hexf61939

16128313 has 8 divisors (see below), whose sum is σ = 17020800. Its totient is φ = 15251808.

The previous prime is 16128227. The next prime is 16128317. The reversal of 16128313 is 31382161.

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

It is a cyclic number.

It is not a de Polignac number, because 16128313 - 221 = 14031161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16128317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1893 + ... + 5986.

It is an arithmetic number, because the mean of its divisors is an integer number (2127600).

Almost surely, 216128313 is an apocalyptic number.

It is an amenable number.

16128313 is a deficient number, since it is larger than the sum of its proper divisors (892487).

16128313 is an equidigital number, since it uses as much as digits as its factorization.

16128313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7991.

The product of its digits is 864, while the sum is 25.

The square root of 16128313 is about 4016.0070966073. The cubic root of 16128313 is about 252.6560183373.

The spelling of 16128313 in words is "sixteen million, one hundred twenty-eight thousand, three hundred thirteen".

Divisors: 1 23 89 2047 7879 181217 701231 16128313