Base | Representation |
---|---|
bin | 11101101001101110… |
… | …110010001001110001 |
3 | 10001011220000122010122 |
4 | 131221232302021301 |
5 | 1010201143032201 |
6 | 22343152340025 |
7 | 2204663666330 |
oct | 355156621161 |
9 | 101156018118 |
10 | 31838642801 |
11 | 125590a1639 |
12 | 6206844615 |
13 | 3005295014 |
14 | 17806ddd17 |
15 | c65266e1b |
hex | 769bb2271 |
31838642801 has 8 divisors (see below), whose sum is σ = 36388099584. Its totient is φ = 27289455840.
The previous prime is 31838642723. The next prime is 31838642821. The reversal of 31838642801 is 10824683813.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-31838642801 is a prime.
It is a super-4 number, since 4×318386428014 (a number of 43 digits) contains 4444 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (31838642821) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429581 + ... + 498213.
It is an arithmetic number, because the mean of its divisors is an integer number (4548512448).
Almost surely, 231838642801 is an apocalyptic number.
It is an amenable number.
31838642801 is a deficient number, since it is larger than the sum of its proper divisors (4549456783).
31838642801 is an equidigital number, since it uses as much as digits as its factorization.
31838642801 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 134911.
The product of its (nonzero) digits is 221184, while the sum is 44.
The spelling of 31838642801 in words is "thirty-one billion, eight hundred thirty-eight million, six hundred forty-two thousand, eight hundred one".
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