| Base | Representation |
|---|---|
| bin | 11101111000010111… |
| … | …10101100101000000 |
| 3 | 1112102000002012200111 |
| 4 | 32330023311211000 |
| 5 | 230323240342121 |
| 6 | 11211502201104 |
| 7 | 1105352532430 |
| oct | 167413654500 |
| 9 | 45360065614 |
| 10 | 16042121536 |
| 11 | 68923a5391 |
| 12 | 3138583194 |
| 13 | 168871360c |
| 14 | ac27b82c0 |
| 15 | 63d5662e1 |
| hex | 3bc2f5940 |
16042121536 has 112 divisors (see below), whose sum is σ = 38755051776. Its totient is φ = 6431514624.
The previous prime is 16042121507. The next prime is 16042121597. The reversal of 16042121536 is 63512124061.
It is a happy number.
16042121536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (112).
It is a junction number, because it is equal to n+sod(n) for n = 16042121498 and 16042121507.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 1265566 + ... + 1278178.
It is an arithmetic number, because the mean of its divisors is an integer number (346027248).
Almost surely, 216042121536 is an apocalyptic number.
16042121536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 16042121536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19377525888).
16042121536 is an abundant number, since it is smaller than the sum of its proper divisors (22712930240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
16042121536 is a wasteful number, since it uses less digits than its factorization.
16042121536 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12816 (or 12806 counting only the distinct ones).
The product of its (nonzero) digits is 8640, while the sum is 31.
Adding to 16042121536 its reverse (63512124061), we get a palindrome (79554245597).
The spelling of 16042121536 in words is "sixteen billion, forty-two million, one hundred twenty-one thousand, five hundred thirty-six".
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