Base | Representation |
---|---|
bin | 11111000000110110001… |
… | …100111001100111100011 |
3 | 21112202000220111111101110 |
4 | 133000312030321213203 |
5 | 234404211030131321 |
6 | 4311022113434403 |
7 | 306655306465134 |
oct | 37006614714743 |
9 | 7482026444343 |
10 | 2131213130211 |
11 | 75192a284670 |
12 | 2a5062b6ba03 |
13 | 125c84879919 |
14 | 75219105c8b |
15 | 3a6875c2176 |
hex | 1f0363399e3 |
2131213130211 has 16 divisors (see below), whose sum is σ = 3143607591168. Its totient is φ = 1273452146400.
The previous prime is 2131213130209. The next prime is 2131213130239. The reversal of 2131213130211 is 1120313121312.
It is not a de Polignac number, because 2131213130211 - 21 = 2131213130209 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2131213180211) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454801996 + ... + 454806681.
It is an arithmetic number, because the mean of its divisors is an integer number (196475474448).
Almost surely, 22131213130211 is an apocalyptic number.
2131213130211 is a deficient number, since it is larger than the sum of its proper divisors (1012394460957).
2131213130211 is a wasteful number, since it uses less digits than its factorization.
2131213130211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 909608762.
The product of its (nonzero) digits is 216, while the sum is 21.
Adding to 2131213130211 its reverse (1120313121312), we get a palindrome (3251526251523).
The spelling of 2131213130211 in words is "two trillion, one hundred thirty-one billion, two hundred thirteen million, one hundred thirty thousand, two hundred eleven".
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