Base | Representation |
---|---|
bin | 1100010011100010101… |
… | …0010000101100010101 |
3 | 202012200002220220120120 |
4 | 3010320222100230111 |
5 | 11430423411000041 |
6 | 241041225222153 |
7 | 21162534231324 |
oct | 3047052205425 |
9 | 665602826516 |
10 | 211404000021 |
11 | 81724057205 |
12 | 34b7a931959 |
13 | 16c20b58996 |
14 | a3368b80bb |
15 | 5774717366 |
hex | 3138a90b15 |
211404000021 has 8 divisors (see below), whose sum is σ = 298452705984. Its totient is φ = 132645647040.
The previous prime is 211403999981. The next prime is 211404000029. The reversal of 211404000021 is 120000404112.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 211404000021 - 29 = 211403999509 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (211404000029) 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, 2072588185 + ... + 2072588286.
It is an arithmetic number, because the mean of its divisors is an integer number (37306588248).
Almost surely, 2211404000021 is an apocalyptic number.
It is an amenable number.
211404000021 is a deficient number, since it is larger than the sum of its proper divisors (87048705963).
211404000021 is a wasteful number, since it uses less digits than its factorization.
211404000021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4145176491.
The product of its (nonzero) digits is 64, while the sum is 15.
Adding to 211404000021 its reverse (120000404112), we get a palindrome (331404404133).
The spelling of 211404000021 in words is "two hundred eleven billion, four hundred four million, twenty-one", and thus it is an aban number.
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