Base | Representation |
---|---|
bin | 10010111001111110… |
… | …011110010001000010 |
3 | 1221101202002102110120 |
4 | 102321332132101002 |
5 | 313033301443132 |
6 | 13154204041110 |
7 | 1316024262654 |
oct | 227176362102 |
9 | 57352072416 |
10 | 20300031042 |
11 | 8677924865 |
12 | 3b26533196 |
13 | 1bb68b68b5 |
14 | da80a66d4 |
15 | 7dc28402c |
hex | 4b9f9e442 |
20300031042 has 8 divisors (see below), whose sum is σ = 40600062096. Its totient is φ = 6766677012.
The previous prime is 20300030999. The next prime is 20300031043. The reversal of 20300031042 is 24013000302.
It is a sphenic number, since it is the product of 3 distinct primes.
20300031042 is an admirable number.
It is not an unprimeable number, because it can be changed into a prime (20300031043) 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, 1691669248 + ... + 1691669259.
It is an arithmetic number, because the mean of its divisors is an integer number (5075007762).
Almost surely, 220300031042 is an apocalyptic number.
20300031042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20300031042 is a wasteful number, since it uses less digits than its factorization.
20300031042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3383338512.
The product of its (nonzero) digits is 144, while the sum is 15.
Adding to 20300031042 its reverse (24013000302), we get a palindrome (44313031344).
The spelling of 20300031042 in words is "twenty billion, three hundred million, thirty-one thousand, forty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •