Base | Representation |
---|---|
bin | 1000111100110… |
… | …11111101010101 |
3 | 12020021211221222 |
4 | 10132123331111 |
5 | 123210301301 |
6 | 11241220125 |
7 | 1601143403 |
oct | 436337525 |
9 | 166254858 |
10 | 75087701 |
11 | 39426557 |
12 | 21191645 |
13 | 127304c0 |
14 | 9d88473 |
15 | 68d331b |
hex | 479bf55 |
75087701 has 8 divisors (see below), whose sum is σ = 80931480. Its totient is φ = 69253632.
The previous prime is 75087679. The next prime is 75087703. The reversal of 75087701 is 10778057.
It can be written as a sum of positive squares in 4 ways, for example, as 11566801 + 63520900 = 3401^2 + 7970^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 75087701 - 210 = 75086677 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (75087703) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26321 + ... + 29033.
It is an arithmetic number, because the mean of its divisors is an integer number (10116435).
Almost surely, 275087701 is an apocalyptic number.
It is an amenable number.
75087701 is a deficient number, since it is larger than the sum of its proper divisors (5843779).
75087701 is a wasteful number, since it uses less digits than its factorization.
75087701 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4855.
The product of its (nonzero) digits is 13720, while the sum is 35.
The square root of 75087701 is about 8665.3159780818. The cubic root of 75087701 is about 421.8806461503.
The spelling of 75087701 in words is "seventy-five million, eighty-seven thousand, seven hundred one".
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