Base | Representation |
---|---|
bin | 11101001001101100… |
… | …010101011111011001 |
3 | 2222210102121011110120 |
4 | 131021230111133121 |
5 | 1003101042131301 |
6 | 22213551503453 |
7 | 2155446134235 |
oct | 351154253731 |
9 | 88712534416 |
10 | 31301130201 |
11 | 12302743450 |
12 | 6096827b89 |
13 | 2c4ab07623 |
14 | 172d1815c5 |
15 | c32e8de36 |
hex | 749b157d9 |
31301130201 has 48 divisors (see below), whose sum is σ = 48634517568. Its totient is φ = 17754854400.
The previous prime is 31301130191. The next prime is 31301130209. The reversal of 31301130201 is 10203110313.
It is not a de Polignac number, because 31301130201 - 27 = 31301130073 is a prime.
It is not an unprimeable number, because it can be changed into a prime (31301130209) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1717131 + ... + 1735263.
It is an arithmetic number, because the mean of its divisors is an integer number (1013219116).
Almost surely, 231301130201 is an apocalyptic number.
It is an amenable number.
31301130201 is a deficient number, since it is larger than the sum of its proper divisors (17333387367).
31301130201 is a wasteful number, since it uses less digits than its factorization.
31301130201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18362 (or 18345 counting only the distinct ones).
The product of its (nonzero) digits is 54, while the sum is 15.
Adding to 31301130201 its reverse (10203110313), we get a palindrome (41504240514).
The spelling of 31301130201 in words is "thirty-one billion, three hundred one million, one hundred thirty thousand, two hundred one".
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