Base | Representation |
---|---|
bin | 11101001011011010… |
… | …100001000000010001 |
3 | 2222212102221120111022 |
4 | 131023122201000101 |
5 | 1003130440410301 |
6 | 22220502525225 |
7 | 2156246501234 |
oct | 351332410021 |
9 | 88772846438 |
10 | 31330013201 |
11 | 12317a806a3 |
12 | 60a4436815 |
13 | 2c53aab066 |
14 | 1732d3d41b |
15 | c35796d1b |
hex | 74b6a1011 |
31330013201 has 8 divisors (see below), whose sum is σ = 34615257984. Its totient is φ = 28205024320.
The previous prime is 31330013191. The next prime is 31330013203. The reversal of 31330013201 is 10231003313.
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 31330013201 - 230 = 30256271377 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (17).
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 31330013201.
It is not an unprimeable number, because it can be changed into a prime (31330013203) 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, 40063565 + ... + 40064346.
It is an arithmetic number, because the mean of its divisors is an integer number (4326907248).
Almost surely, 231330013201 is an apocalyptic number.
It is an amenable number.
31330013201 is a deficient number, since it is larger than the sum of its proper divisors (3285244783).
31330013201 is a wasteful number, since it uses less digits than its factorization.
31330013201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 80127951.
The product of its (nonzero) digits is 162, while the sum is 17.
Adding to 31330013201 its reverse (10231003313), we get a palindrome (41561016514).
The spelling of 31330013201 in words is "thirty-one billion, three hundred thirty million, thirteen thousand, two hundred one".
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