Base | Representation |
---|---|
bin | 101111001000100110… |
… | …0100010001111011001 |
3 | 100200021012201110021022 |
4 | 1132101030202033121 |
5 | 3124244334330410 |
6 | 114255552452225 |
7 | 10212221521451 |
oct | 1362114421731 |
9 | 320235643238 |
10 | 101220230105 |
11 | 39a221aa035 |
12 | 1774a54a075 |
13 | 9711567ca7 |
14 | 4c83138d61 |
15 | 297641e455 |
hex | 17913223d9 |
101220230105 has 8 divisors (see below), whose sum is σ = 121713692352. Its totient is φ = 80809906608.
The previous prime is 101220230093. The next prime is 101220230117. The reversal of 101220230105 is 501032022101.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (101220230093) and next prime (101220230117).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-101220230105 is a prime.
It is a super-2 number, since 2×1012202301052 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20782007 + ... + 20786876.
It is an arithmetic number, because the mean of its divisors is an integer number (15214211544).
Almost surely, 2101220230105 is an apocalyptic number.
It is an amenable number.
101220230105 is a deficient number, since it is larger than the sum of its proper divisors (20493462247).
101220230105 is an equidigital number, since it uses as much as digits as its factorization.
101220230105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41569375.
The product of its (nonzero) digits is 120, while the sum is 17.
Adding to 101220230105 its reverse (501032022101), we get a palindrome (602252252206).
The spelling of 101220230105 in words is "one hundred one billion, two hundred twenty million, two hundred thirty thousand, one hundred five".
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