Base | Representation |
---|---|
bin | 100000010011110101… |
… | …0011111010100010000 |
3 | 20122002112222110121212 |
4 | 1000213222133110100 |
5 | 2114100020121410 |
6 | 51512555435252 |
7 | 5004265100252 |
oct | 1004752372420 |
9 | 218075873555 |
10 | 69384926480 |
11 | 27475a89251 |
12 | 11544a55b28 |
13 | 6709ba1b1c |
14 | 3503067cd2 |
15 | 1c11616b05 |
hex | 1027a9f510 |
69384926480 has 40 divisors (see below), whose sum is σ = 165254594904. Its totient is φ = 27077043200.
The previous prime is 69384926467. The next prime is 69384926581. The reversal of 69384926480 is 8462948396.
It can be written as a sum of positive squares in 4 ways, for example, as 1136498944 + 68248427536 = 33712^2 + 261244^2 .
It is a tau number, because it is divible by the number of its divisors (40).
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, 10573691 + ... + 10580250.
Almost surely, 269384926480 is an apocalyptic number.
It is an amenable number.
69384926480 is an abundant number, since it is smaller than the sum of its proper divisors (95869668424).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69384926480 is a wasteful number, since it uses less digits than its factorization.
69384926480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21153995 (or 21153989 counting only the distinct ones).
The product of its (nonzero) digits is 17915904, while the sum is 59.
The spelling of 69384926480 in words is "sixty-nine billion, three hundred eighty-four million, nine hundred twenty-six thousand, four hundred eighty".
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