Search a number
-
+
16388141 = 711331643
BaseRepresentation
bin111110100001…
…000000101101
31010211121022012
4332201000231
513143410031
61343131005
7256203560
oct76410055
933747265
1016388141
119283720
1255a3a65
13351a433
1422684d7
15168ab2b
hexfa102d

16388141 has 16 divisors (see below), whose sum is σ = 20525568. Its totient is φ = 12711600.

The previous prime is 16388123. The next prime is 16388171. The reversal of 16388141 is 14188361.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-16388141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16388098 and 16388107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16388111) 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 15 ways as a sum of consecutive naturals, for example, 25166 + ... + 25808.

It is an arithmetic number, because the mean of its divisors is an integer number (1282848).

Almost surely, 216388141 is an apocalyptic number.

16388141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16388141 is a deficient number, since it is larger than the sum of its proper divisors (4137427).

16388141 is a wasteful number, since it uses less digits than its factorization.

16388141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992.

The product of its digits is 4608, while the sum is 32.

The square root of 16388141 is about 4048.2268958150. The cubic root of 16388141 is about 254.0055643892.

It can be divided in two parts, 1638 and 8141, that added together give a palindrome (9779).

The spelling of 16388141 in words is "sixteen million, three hundred eighty-eight thousand, one hundred forty-one".

Divisors: 1 7 11 77 331 643 2317 3641 4501 7073 25487 49511 212833 1489831 2341163 16388141