Base | Representation |
---|---|
bin | 101111100000011101… |
… | …1101100100010101110 |
3 | 100202100000201222201022 |
4 | 1133000323230202232 |
5 | 3132414401402342 |
6 | 114511242414142 |
7 | 10241115142055 |
oct | 1370073544256 |
9 | 322300658638 |
10 | 102021122222 |
11 | 3a2a329a148 |
12 | 17932801352 |
13 | 980b470c56 |
14 | 4d1b65739c |
15 | 29c18c09d2 |
hex | 17c0eec8ae |
102021122222 has 4 divisors (see below), whose sum is σ = 153031683336. Its totient is φ = 51010561110.
The previous prime is 102021122219. The next prime is 102021122227. The reversal of 102021122222 is 222221120201.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a super-4 number, since 4×1020211222224 (a number of 45 digits) contains 4444 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 102021122222.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102021122227) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25505280554 + ... + 25505280557.
It is an arithmetic number, because the mean of its divisors is an integer number (38257920834).
Almost surely, 2102021122222 is an apocalyptic number.
102021122222 is a deficient number, since it is larger than the sum of its proper divisors (51010561114).
102021122222 is an equidigital number, since it uses as much as digits as its factorization.
102021122222 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 51010561113.
The product of its (nonzero) digits is 128, while the sum is 17.
Adding to 102021122222 its reverse (222221120201), we get a palindrome (324242242423).
The spelling of 102021122222 in words is "one hundred two billion, twenty-one million, one hundred twenty-two thousand, two hundred twenty-two".
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