Base | Representation |
---|---|
bin | 1001101001000001111110… |
… | …11000101110101000000110 |
3 | 2210001210112200021121122120 |
4 | 10310200333120232220012 |
5 | 10234324143114120402 |
6 | 113031340504110410 |
7 | 4315503042530241 |
oct | 464407730565006 |
9 | 83053480247576 |
10 | 21201022020102 |
11 | 6834337247a41 |
12 | 2464a97465406 |
13 | baa32b548662 |
14 | 5341c63c6258 |
15 | 26b7496523bc |
hex | 13483f62ea06 |
21201022020102 has 32 divisors (see below), whose sum is σ = 42573063287040. Its totient is φ = 7038560521440.
The previous prime is 21201022020071. The next prime is 21201022020109. The reversal of 21201022020102 is 20102022010212.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (21201022020109) 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, 5544133 + ... + 8552160.
It is an arithmetic number, because the mean of its divisors is an integer number (1330408227720).
Almost surely, 221201022020102 is an apocalyptic number.
21201022020102 is an abundant number, since it is smaller than the sum of its proper divisors (21372041266938).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
21201022020102 is a wasteful number, since it uses less digits than its factorization.
21201022020102 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14097308.
The product of its (nonzero) digits is 64, while the sum is 15.
Adding to 21201022020102 its reverse (20102022010212), we get a palindrome (41303044030314).
The spelling of 21201022020102 in words is "twenty-one trillion, two hundred one billion, twenty-two million, twenty thousand, one hundred two".
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