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16385384 = 232389051
BaseRepresentation
bin111110100000…
…010101101000
31010211110112002
4332200111220
513143313014
61343110132
7256162541
oct76402550
933743462
1016385384
119281644
1255a2348
1335190c2
1422674c8
151689dde
hexfa0568

16385384 has 16 divisors (see below), whose sum is σ = 32058720. Its totient is φ = 7836400.

The previous prime is 16385359. The next prime is 16385389. The reversal of 16385384 is 48358361.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (16385389) 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, 44342 + ... + 44709.

It is an arithmetic number, because the mean of its divisors is an integer number (2003670).

Almost surely, 216385384 is an apocalyptic number.

It is an amenable number.

16385384 is a deficient number, since it is larger than the sum of its proper divisors (15673336).

16385384 is a wasteful number, since it uses less digits than its factorization.

16385384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89080 (or 89076 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 16385384 is about 4047.8863620413. The cubic root of 16385384 is about 253.9913196860.

The spelling of 16385384 in words is "sixteen million, three hundred eighty-five thousand, three hundred eighty-four".

Divisors: 1 2 4 8 23 46 92 184 89051 178102 356204 712408 2048173 4096346 8192692 16385384