Base | Representation |
---|---|
bin | 110001100010001… |
… | …110110001101001 |
3 | 2010220210001212221 |
4 | 301202032301221 |
5 | 3200222311001 |
6 | 214244234041 |
7 | 26410603465 |
oct | 6142166151 |
9 | 2126701787 |
10 | 831057001 |
11 | 397123475 |
12 | 1b239b921 |
13 | 103238008 |
14 | 7c5314a5 |
15 | 4ce5e1a1 |
hex | 3188ec69 |
831057001 has 8 divisors (see below), whose sum is σ = 853533824. Its totient is φ = 808723440.
The previous prime is 831056977. The next prime is 831057041. The reversal of 831057001 is 100750138.
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 831057001 - 27 = 831056873 is a prime.
It is a super-2 number, since 2×8310570012 = 1381311477822228002, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (831057041) 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, 24006 + ... + 47311.
It is an arithmetic number, because the mean of its divisors is an integer number (106691728).
Almost surely, 2831057001 is an apocalyptic number.
It is an amenable number.
831057001 is a deficient number, since it is larger than the sum of its proper divisors (22476823).
831057001 is a wasteful number, since it uses less digits than its factorization.
831057001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 71631.
The product of its (nonzero) digits is 840, while the sum is 25.
The square root of 831057001 is about 28828.0592652367. The cubic root of 831057001 is about 940.1784032142.
The spelling of 831057001 in words is "eight hundred thirty-one million, fifty-seven thousand, one".
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