Base | Representation |
---|---|
bin | 100001111001110110… |
… | …0110000011000110000 |
3 | 20221221010020022112010 |
4 | 1003303230300120300 |
5 | 2143102331312002 |
6 | 53240401402520 |
7 | 5155152256452 |
oct | 1036354603060 |
9 | 227833208463 |
10 | 72808072752 |
11 | 28972293758 |
12 | 1213b339440 |
13 | 6b3414016c |
14 | 374993c2d2 |
15 | 1d61de246c |
hex | 10f3b30630 |
72808072752 has 20 divisors (see below), whose sum is σ = 188087521400. Its totient is φ = 24269357568.
The previous prime is 72808072741. The next prime is 72808072769. The reversal of 72808072752 is 25727080827.
It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1516834849 = 72808072752 / (7 + 2 + 8 + 0 + 8 + 0 + 7 + 2 + 7 + 5 + 2).
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758417377 + ... + 758417472.
It is an arithmetic number, because the mean of its divisors is an integer number (9404376070).
Almost surely, 272808072752 is an apocalyptic number.
It is an amenable number.
72808072752 is an abundant number, since it is smaller than the sum of its proper divisors (115279448648).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72808072752 is a wasteful number, since it uses less digits than its factorization.
72808072752 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1516834860 (or 1516834854 counting only the distinct ones).
The product of its (nonzero) digits is 878080, while the sum is 48.
The spelling of 72808072752 in words is "seventy-two billion, eight hundred eight million, seventy-two thousand, seven hundred fifty-two".
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