Base | Representation |
---|---|
bin | 111100100101111110… |
… | …0010001111001010101 |
3 | 110102212111120222120022 |
4 | 1321023330101321111 |
5 | 4112443004041041 |
6 | 135435553514525 |
7 | 12254400126350 |
oct | 1711374217125 |
9 | 412774528508 |
10 | 130123112021 |
11 | 50204117001 |
12 | 21275b72a45 |
13 | c36954b096 |
14 | 6425995297 |
15 | 35b8a8124b |
hex | 1e4bf11e55 |
130123112021 has 8 divisors (see below), whose sum is σ = 151518017664. Its totient is φ = 109429678800.
The previous prime is 130123111939. The next prime is 130123112039. The reversal of 130123112021 is 120211321031.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 130123112021 - 214 = 130123095637 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130123112521) 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, 175367705 + ... + 175368446.
It is an arithmetic number, because the mean of its divisors is an integer number (18939752208).
Almost surely, 2130123112021 is an apocalyptic number.
It is an amenable number.
130123112021 is a deficient number, since it is larger than the sum of its proper divisors (21394905643).
130123112021 is an equidigital number, since it uses as much as digits as its factorization.
130123112021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 350736211.
The product of its (nonzero) digits is 72, while the sum is 17.
Adding to 130123112021 its reverse (120211321031), we get a palindrome (250334433052).
The spelling of 130123112021 in words is "one hundred thirty billion, one hundred twenty-three million, one hundred twelve thousand, twenty-one".
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