Base | Representation |
---|---|
bin | 11101101100010011110… |
… | …10110011010001010110 |
3 | 10121112100222001212200000 |
4 | 32312021322303101112 |
5 | 113203403103021402 |
6 | 2100403315432130 |
7 | 133465013424051 |
oct | 16661172632126 |
9 | 3545328055600 |
10 | 1020221142102 |
11 | 363745268288 |
12 | 145885bb5646 |
13 | 7528b720996 |
14 | 37543c55a98 |
15 | 1b811b15c1c |
hex | ed89eb3456 |
1020221142102 has 48 divisors (see below), whose sum is σ = 2292715064640. Its totient is φ = 340019369352.
The previous prime is 1020221142071. The next prime is 1020221142163. The reversal of 1020221142102 is 2012411220201.
1020221142102 is a `hidden beast` number, since 1 + 0 + 20 + 221 + 1 + 421 + 0 + 2 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2935653 + ... + 3264735.
It is an arithmetic number, because the mean of its divisors is an integer number (47764897180).
Almost surely, 21020221142102 is an apocalyptic number.
1020221142102 is an abundant number, since it is smaller than the sum of its proper divisors (1272493922538).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1020221142102 is an equidigital number, since it uses as much as digits as its factorization.
1020221142102 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 335479 (or 335467 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 18.
Adding to 1020221142102 its reverse (2012411220201), we get a palindrome (3032632362303).
The spelling of 1020221142102 in words is "one trillion, twenty billion, two hundred twenty-one million, one hundred forty-two thousand, one hundred two".
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