Base | Representation |
---|---|
bin | 1001010011001… |
… | …00010010000000 |
3 | 12102210002021000 |
4 | 10221210102000 |
5 | 124432133001 |
6 | 11423532000 |
7 | 1635014631 |
oct | 451442200 |
9 | 172702230 |
10 | 78005376 |
11 | 40039659 |
12 | 2215a000 |
13 | 13212537 |
14 | a507888 |
15 | 6caca86 |
hex | 4a64480 |
78005376 has 64 divisors (see below), whose sum is σ = 230234400. Its totient is φ = 26000640.
The previous prime is 78005359. The next prime is 78005377. The reversal of 78005376 is 67350087.
It is a tau number, because it is divible by the number of its divisors (64).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a self number, because there is not a number n which added to its sum of digits gives 78005376.
It is not an unprimeable number, because it can be changed into a prime (78005377) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7830 + ... + 14741.
Almost surely, 278005376 is an apocalyptic number.
It is an amenable number.
78005376 is an abundant number, since it is smaller than the sum of its proper divisors (152229024).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78005376 is a wasteful number, since it uses less digits than its factorization.
78005376 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22594 (or 22576 counting only the distinct ones).
The product of its (nonzero) digits is 35280, while the sum is 36.
The square root of 78005376 is about 8832.0652171505. The cubic root of 78005376 is about 427.2756841037.
The spelling of 78005376 in words is "seventy-eight million, five thousand, three hundred seventy-six".
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