Base | Representation |
---|---|
bin | 11101110101100000001011… |
… | …010010111001010010010001 |
3 | 122012121111211112022120221101 |
4 | 131311200023102321102101 |
5 | 114144402110231030001 |
6 | 1143025352202024401 |
7 | 36432222451333204 |
oct | 3565401322712221 |
9 | 565544745276841 |
10 | 131220030330001 |
11 | 388a1114249758 |
12 | 128733a27a8101 |
13 | 582acc3906a62 |
14 | 2459124a2593b |
15 | 10285029e1a01 |
hex | 77580b4b9491 |
131220030330001 has 8 divisors (see below), whose sum is σ = 135754338119400. Its totient is φ = 126686354484480.
The previous prime is 131220030329897. The next prime is 131220030330007. The reversal of 131220030330001 is 100033030022131.
It can be written as a sum of positive squares in 4 ways, for example, as 6678916609600 + 124541113720401 = 2584360^2 + 11159799^2 .
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 131220030330001 - 239 = 130670274516113 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131220030330007) 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, 157563486 + ... + 158394103.
It is an arithmetic number, because the mean of its divisors is an integer number (16969292264925).
Almost surely, 2131220030330001 is an apocalyptic number.
It is an amenable number.
131220030330001 is a deficient number, since it is larger than the sum of its proper divisors (4534307789399).
131220030330001 is a wasteful number, since it uses less digits than its factorization.
131220030330001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 315971939.
The product of its (nonzero) digits is 324, while the sum is 19.
Adding to 131220030330001 its reverse (100033030022131), we get a palindrome (231253060352132).
The spelling of 131220030330001 in words is "one hundred thirty-one trillion, two hundred twenty billion, thirty million, three hundred thirty thousand, one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •