Base | Representation |
---|---|
bin | 111101010011… |
… | …110111010000 |
3 | 1010020112211121 |
4 | 331103313100 |
5 | 13103302034 |
6 | 1332252024 |
7 | 253416364 |
oct | 75236720 |
9 | 33215747 |
10 | 16072144 |
11 | 9088270 |
12 | 5471014 |
13 | 343965a |
14 | 21c52a4 |
15 | 16271b4 |
hex | f53dd0 |
16072144 has 40 divisors (see below), whose sum is σ = 34631712. Its totient is φ = 7163520.
The previous prime is 16072139. The next prime is 16072163. The reversal of 16072144 is 44127061.
It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8467 + ... + 10189.
Almost surely, 216072144 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 16072144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17315856).
16072144 is an abundant number, since it is smaller than the sum of its proper divisors (18559568).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
16072144 is a wasteful number, since it uses less digits than its factorization.
16072144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1795 (or 1789 counting only the distinct ones).
The product of its (nonzero) digits is 1344, while the sum is 25.
The square root of 16072144 is about 4009.0078573133. The cubic root of 16072144 is about 252.3623744336.
The spelling of 16072144 in words is "sixteen million, seventy-two thousand, one hundred forty-four".
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