Base | Representation |
---|---|
bin | 11101000011101010… |
… | …111100001101010001 |
3 | 2222112101111100201202 |
4 | 131003222330031101 |
5 | 1002344211214301 |
6 | 22155542240545 |
7 | 2153111325113 |
oct | 350352741521 |
9 | 88471440652 |
10 | 31200101201 |
11 | 12260709905 |
12 | 6068a26155 |
13 | 2c32bc3659 |
14 | 171d9a33b3 |
15 | c2918466b |
hex | 743abc351 |
31200101201 has 2 divisors, whose sum is σ = 31200101202. Its totient is φ = 31200101200.
The previous prime is 31200101183. The next prime is 31200101203. The reversal of 31200101201 is 10210100213.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 16345366801 + 14854734400 = 127849^2 + 121880^2 .
It is a cyclic number.
It is not a de Polignac number, because 31200101201 - 26 = 31200101137 is a prime.
Together with 31200101203, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (31200101203) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15600050600 + 15600050601.
It is an arithmetic number, because the mean of its divisors is an integer number (15600050601).
Almost surely, 231200101201 is an apocalyptic number.
It is an amenable number.
31200101201 is a deficient number, since it is larger than the sum of its proper divisors (1).
31200101201 is an equidigital number, since it uses as much as digits as its factorization.
31200101201 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 12, while the sum is 11.
Adding to 31200101201 its reverse (10210100213), we get a palindrome (41410201414).
The spelling of 31200101201 in words is "thirty-one billion, two hundred million, one hundred one thousand, two hundred one".
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