Base | Representation |
---|---|
bin | 11101001001101100… |
… | …001110110111111101 |
3 | 2222210102112210021212 |
4 | 131021230032313331 |
5 | 1003101040244401 |
6 | 22213551134205 |
7 | 2155445662232 |
oct | 351154166775 |
9 | 88712483255 |
10 | 31301103101 |
11 | 12302725054 |
12 | 6096814365 |
13 | 2c4aac81a8 |
14 | 172d175789 |
15 | c32e85dbb |
hex | 749b0edfd |
31301103101 has 4 divisors (see below), whose sum is σ = 32948529600. Its totient is φ = 29653676604.
The previous prime is 31301103079. The next prime is 31301103161. The reversal of 31301103101 is 10130110313.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10130110313 = 1019 ⋅9941227.
It is a cyclic number.
It is not a de Polignac number, because 31301103101 - 26 = 31301103037 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31301103161) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 823713221 + ... + 823713258.
It is an arithmetic number, because the mean of its divisors is an integer number (8237132400).
Almost surely, 231301103101 is an apocalyptic number.
It is an amenable number.
31301103101 is a deficient number, since it is larger than the sum of its proper divisors (1647426499).
31301103101 is a wasteful number, since it uses less digits than its factorization.
31301103101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1647426498.
The product of its (nonzero) digits is 27, while the sum is 14.
Adding to 31301103101 its reverse (10130110313), we get a palindrome (41431213414).
The spelling of 31301103101 in words is "thirty-one billion, three hundred one million, one hundred three thousand, one hundred one".
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