Base | Representation |
---|---|
bin | 100000110001111111… |
… | …1110010011100010101 |
3 | 20201201002122101101101 |
4 | 1001203333302130111 |
5 | 2123133132032210 |
6 | 52201235030101 |
7 | 5041335561253 |
oct | 1014377623425 |
9 | 221632571341 |
10 | 70397142805 |
11 | 27945396370 |
12 | 11787a3b331 |
13 | 683b7c85b2 |
14 | 359b6755d3 |
15 | 1c7040ca3a |
hex | 1063ff2715 |
70397142805 has 8 divisors (see below), whose sum is σ = 92156259744. Its totient is φ = 51197922000.
The previous prime is 70397142787. The next prime is 70397142811. The reversal of 70397142805 is 50824179307.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 70397142805 - 25 = 70397142773 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639973971 + ... + 639974080.
It is an arithmetic number, because the mean of its divisors is an integer number (11519532468).
Almost surely, 270397142805 is an apocalyptic number.
It is an amenable number.
70397142805 is a deficient number, since it is larger than the sum of its proper divisors (21759116939).
70397142805 is a wasteful number, since it uses less digits than its factorization.
70397142805 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1279948067.
The product of its (nonzero) digits is 423360, while the sum is 46.
The spelling of 70397142805 in words is "seventy billion, three hundred ninety-seven million, one hundred forty-two thousand, eight hundred five".
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