Base | Representation |
---|---|
bin | 11110111111111101… |
… | …01110101001011100 |
3 | 1120221212002222111221 |
4 | 33133332232221130 |
5 | 233041010240202 |
6 | 11351234023124 |
7 | 1126264214236 |
oct | 173776565134 |
9 | 46855088457 |
10 | 16642665052 |
11 | 7070394642 |
12 | 3285717aa4 |
13 | 1752c6c700 |
14 | b3c463256 |
15 | 676140037 |
hex | 3dffaea5c |
16642665052 has 72 divisors (see below), whose sum is σ = 31943261952. Its totient is φ = 7583097600.
The previous prime is 16642665047. The next prime is 16642665073. The reversal of 16642665052 is 25056624661.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20270802 + ... + 20271622.
It is an arithmetic number, because the mean of its divisors is an integer number (443656416).
Almost surely, 216642665052 is an apocalyptic number.
It is an amenable number.
16642665052 is a deficient number, since it is larger than the sum of its proper divisors (15300596900).
16642665052 is a wasteful number, since it uses less digits than its factorization.
16642665052 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1199 (or 1184 counting only the distinct ones).
The product of its (nonzero) digits is 518400, while the sum is 43.
The spelling of 16642665052 in words is "sixteen billion, six hundred forty-two million, six hundred sixty-five thousand, fifty-two".
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