Base | Representation |
---|---|
bin | 111100101000111000… |
… | …1101100101000011100 |
3 | 110110010022210021100002 |
4 | 1321101301230220130 |
5 | 4113143034014434 |
6 | 135453411553432 |
7 | 12256666150565 |
oct | 1712161545034 |
9 | 413108707302 |
10 | 130221001244 |
11 | 502543a6694 |
12 | 212a28bb878 |
13 | c383902bb9 |
14 | 643499716c |
15 | 35c246a57e |
hex | 1e51c6ca1c |
130221001244 has 12 divisors (see below), whose sum is σ = 230143057368. Its totient is φ = 64465842000.
The previous prime is 130221001243. The next prime is 130221001307. The reversal of 130221001244 is 442100122031.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130221001243) 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, 161164202 + ... + 161165009.
It is an arithmetic number, because the mean of its divisors is an integer number (19178588114).
Almost surely, 2130221001244 is an apocalyptic number.
It is an amenable number.
130221001244 is a deficient number, since it is larger than the sum of its proper divisors (99922056124).
130221001244 is a wasteful number, since it uses less digits than its factorization.
130221001244 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 322329316 (or 322329314 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 20.
Adding to 130221001244 its reverse (442100122031), we get a palindrome (572321123275).
The spelling of 130221001244 in words is "one hundred thirty billion, two hundred twenty-one million, one thousand, two hundred forty-four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •