Base | Representation |
---|---|
bin | 1001001111000110010101… |
… | …11011100111111001010111 |
3 | 2122220121200111222101002212 |
4 | 10213203022323213321113 |
5 | 10130224400030044111 |
6 | 111110142332224035 |
7 | 4164230660410460 |
oct | 447431273477127 |
9 | 78817614871085 |
10 | 20310010003031 |
11 | 6520477190811 |
12 | 234027130b01b |
13 | b442c1bc2b58 |
14 | 50301c9a7d67 |
15 | 25349b22b98b |
hex | 1278caee7e57 |
20310010003031 has 32 divisors (see below), whose sum is σ = 24218994229248. Its totient is φ = 16665214648320.
The previous prime is 20310010003021. The next prime is 20310010003037. The reversal of 20310010003031 is 13030001001302.
It is not a de Polignac number, because 20310010003031 - 214 = 20310009986647 is a prime.
It is a super-2 number, since 2×203100100030312 (a number of 27 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 20310010002997 and 20310010003015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20310010003037) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43190231 + ... + 43657943.
It is an arithmetic number, because the mean of its divisors is an integer number (756843569664).
Almost surely, 220310010003031 is an apocalyptic number.
20310010003031 is a deficient number, since it is larger than the sum of its proper divisors (3908984226217).
20310010003031 is a wasteful number, since it uses less digits than its factorization.
20310010003031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 469911.
The product of its (nonzero) digits is 54, while the sum is 14.
Adding to 20310010003031 its reverse (13030001001302), we get a palindrome (33340011004333).
The spelling of 20310010003031 in words is "twenty trillion, three hundred ten billion, ten million, three thousand, thirty-one".
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