Base | Representation |
---|---|
bin | 100011000011101110… |
… | …1000100100100011111 |
3 | 21012022212202022110020 |
4 | 1012013131010210133 |
5 | 2213141432122322 |
6 | 54330353243223 |
7 | 5303452564002 |
oct | 1060735044437 |
9 | 235285668406 |
10 | 75286989087 |
11 | 29a245a7242 |
12 | 12711563513 |
13 | 713a899b6b |
14 | 3902c61539 |
15 | 1e5985605c |
hex | 118774491f |
75286989087 has 16 divisors (see below), whose sum is σ = 100789265280. Its totient is φ = 49988407392.
The previous prime is 75286989077. The next prime is 75286989097. The reversal of 75286989087 is 78098968257.
It is an interprime number because it is at equal distance from previous prime (75286989077) and next prime (75286989097).
It is not a de Polignac number, because 75286989087 - 224 = 75270211871 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (75286989007) 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, 736908 + ... + 832830.
It is an arithmetic number, because the mean of its divisors is an integer number (6299329080).
Almost surely, 275286989087 is an apocalyptic number.
75286989087 is a deficient number, since it is larger than the sum of its proper divisors (25502276193).
75286989087 is a wasteful number, since it uses less digits than its factorization.
75286989087 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 96982.
The product of its (nonzero) digits is 121927680, while the sum is 69.
The spelling of 75286989087 in words is "seventy-five billion, two hundred eighty-six million, nine hundred eighty-nine thousand, eighty-seven".
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