Base | Representation |
---|---|
bin | 111000000100110011… |
… | …0010110001001001001 |
3 | 102111211021201111102201 |
4 | 1300021212112021021 |
5 | 3433110023201101 |
6 | 131153101200201 |
7 | 11462060141203 |
oct | 1601146261111 |
9 | 374737644381 |
10 | 120420131401 |
11 | 47085030059 |
12 | 1b408560061 |
13 | b481256b2b |
14 | 5b8506b773 |
15 | 31ebce3e01 |
hex | 1c09996249 |
120420131401 has 4 divisors (see below), whose sum is σ = 125655789312. Its totient is φ = 115184473492.
The previous prime is 120420131399. The next prime is 120420131453. The reversal of 120420131401 is 104131024021.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 120420131401 - 21 = 120420131399 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (120420131471) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2617828921 + ... + 2617828966.
It is an arithmetic number, because the mean of its divisors is an integer number (31413947328).
Almost surely, 2120420131401 is an apocalyptic number.
It is an amenable number.
120420131401 is a deficient number, since it is larger than the sum of its proper divisors (5235657911).
120420131401 is an equidigital number, since it uses as much as digits as its factorization.
120420131401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5235657910.
The product of its (nonzero) digits is 192, while the sum is 19.
Adding to 120420131401 its reverse (104131024021), we get a palindrome (224551155422).
The spelling of 120420131401 in words is "one hundred twenty billion, four hundred twenty million, one hundred thirty-one thousand, four hundred one".
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