Base | Representation |
---|---|
bin | 1000111101010… |
… | …01011101110101 |
3 | 12020101122212011 |
4 | 10132221131311 |
5 | 123214034104 |
6 | 11242324221 |
7 | 1601463613 |
oct | 436513565 |
9 | 166348764 |
10 | 75143029 |
11 | 39464085 |
12 | 211b9671 |
13 | 1274c740 |
14 | 9da06b3 |
15 | 68e4904 |
hex | 47a9775 |
75143029 has 16 divisors (see below), whose sum is σ = 83026944. Its totient is φ = 67579200.
The previous prime is 75143023. The next prime is 75143051. The reversal of 75143029 is 92034157.
It is not a de Polignac number, because 75143029 - 27 = 75142901 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (75143023) 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, 131314 + ... + 131884.
It is an arithmetic number, because the mean of its divisors is an integer number (5189184).
Almost surely, 275143029 is an apocalyptic number.
It is an amenable number.
75143029 is a deficient number, since it is larger than the sum of its proper divisors (7883915).
75143029 is a wasteful number, since it uses less digits than its factorization.
75143029 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 828.
The product of its (nonzero) digits is 7560, while the sum is 31.
The square root of 75143029 is about 8668.5078877509. The cubic root of 75143029 is about 421.9842409305.
The spelling of 75143029 in words is "seventy-five million, one hundred forty-three thousand, twenty-nine".
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