Base | Representation |
---|---|
bin | 100010111100001000… |
… | …1001100000011001000 |
3 | 21011200010100111010210 |
4 | 1011320101030003020 |
5 | 2212131221401002 |
6 | 54245212441120 |
7 | 5264240211414 |
oct | 1057021140310 |
9 | 234603314123 |
10 | 75032215752 |
11 | 2990380326a |
12 | 126601791a0 |
13 | 70c9b75900 |
14 | 38bb0a1d44 |
15 | 1e422cc96c |
hex | 117844c0c8 |
75032215752 has 96 divisors (see below), whose sum is σ = 206952796800. Its totient is φ = 22651170048.
The previous prime is 75032215729. The next prime is 75032215813. The reversal of 75032215752 is 25751223057.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a self number, because there is not a number n which added to its sum of digits gives 75032215752.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40449 + ... + 389487.
It is an arithmetic number, because the mean of its divisors is an integer number (2155758300).
Almost surely, 275032215752 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 75032215752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103476398400).
75032215752 is an abundant number, since it is smaller than the sum of its proper divisors (131920581048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
75032215752 is a wasteful number, since it uses less digits than its factorization.
75032215752 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 349127 (or 349110 counting only the distinct ones).
The product of its (nonzero) digits is 147000, while the sum is 39.
The spelling of 75032215752 in words is "seventy-five billion, thirty-two million, two hundred fifteen thousand, seven hundred fifty-two".
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