Base | Representation |
---|---|
bin | 11101010010100101… |
… | …111000101011000101 |
3 | 10000011211112121002222 |
4 | 131102211320223011 |
5 | 1003402302343440 |
6 | 22240443542125 |
7 | 2162241165056 |
oct | 352245705305 |
9 | 100154477088 |
10 | 31450434245 |
11 | 12379a4a81a |
12 | 611882a945 |
13 | 2c72a21809 |
14 | 1744d2872d |
15 | c411322b5 |
hex | 752978ac5 |
31450434245 has 8 divisors (see below), whose sum is σ = 37744380960. Its totient is φ = 25157774160.
The previous prime is 31450434241. The next prime is 31450434293. The reversal of 31450434245 is 54243405413.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 31450434245 - 22 = 31450434241 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31450434241) 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, 267035 + ... + 366344.
It is an arithmetic number, because the mean of its divisors is an integer number (4718047620).
Almost surely, 231450434245 is an apocalyptic number.
It is an amenable number.
31450434245 is a deficient number, since it is larger than the sum of its proper divisors (6293946715).
31450434245 is an equidigital number, since it uses as much as digits as its factorization.
31450434245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 643315.
The product of its (nonzero) digits is 115200, while the sum is 35.
Adding to 31450434245 its reverse (54243405413), we get a palindrome (85693839658).
The spelling of 31450434245 in words is "thirty-one billion, four hundred fifty million, four hundred thirty-four thousand, two hundred forty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.097 sec. • engine limits •