Base | Representation |
---|---|
bin | 1000010110000… |
… | …11010101111111 |
3 | 11212201200101010 |
4 | 10023003111333 |
5 | 120410144033 |
6 | 10540250303 |
7 | 1510020354 |
oct | 413032577 |
9 | 155650333 |
10 | 70006143 |
11 | 36575719 |
12 | 1b540993 |
13 | 1167156c |
14 | 942462b |
15 | 622c863 |
hex | 42c357f |
70006143 has 8 divisors (see below), whose sum is σ = 93936688. Its totient is φ = 46373184.
The previous prime is 70006121. The next prime is 70006151. The reversal of 70006143 is 34160007.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 70006143 - 29 = 70005631 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 (70006103) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73846 + ... + 74787.
It is an arithmetic number, because the mean of its divisors is an integer number (11742086).
Almost surely, 270006143 is an apocalyptic number.
70006143 is a deficient number, since it is larger than the sum of its proper divisors (23930545).
70006143 is a wasteful number, since it uses less digits than its factorization.
70006143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 148793.
The product of its (nonzero) digits is 504, while the sum is 21.
The square root of 70006143 is about 8366.9673717542. The cubic root of 70006143 is about 412.1405853690.
The spelling of 70006143 in words is "seventy million, six thousand, one hundred forty-three".
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