Base | Representation |
---|---|
bin | 100100100010101010… |
… | …0000111101110100000 |
3 | 21111112212111120110010 |
4 | 1021011110013232200 |
5 | 2241202403020020 |
6 | 100014422004520 |
7 | 5445421442601 |
oct | 1110524075640 |
9 | 244485446403 |
10 | 78472313760 |
11 | 30309636875 |
12 | 13260276740 |
13 | 752779aa69 |
14 | 3b25d09da8 |
15 | 2094305de0 |
hex | 1245507ba0 |
78472313760 has 96 divisors (see below), whose sum is σ = 255161636352. Its totient is φ = 20250915840.
The previous prime is 78472313749. The next prime is 78472313761. The reversal of 78472313760 is 6731327487.
It is a tau number, because it is divible by the number of its divisors (96).
It is a Harshad number since it is a multiple of its sum of digits (48).
It is not an unprimeable number, because it can be changed into a prime (78472313761) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2621959 + ... + 2651718.
It is an arithmetic number, because the mean of its divisors is an integer number (2657933712).
Almost surely, 278472313760 is an apocalyptic number.
It is an amenable number.
78472313760 is an abundant number, since it is smaller than the sum of its proper divisors (176689322592).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78472313760 is a wasteful number, since it uses less digits than its factorization.
78472313760 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5273726 (or 5273718 counting only the distinct ones).
The product of its (nonzero) digits is 1185408, while the sum is 48.
The spelling of 78472313760 in words is "seventy-eight billion, four hundred seventy-two million, three hundred thirteen thousand, seven hundred sixty".
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