Base | Representation |
---|---|
bin | 11000010011101111… |
… | …10010011101100010 |
3 | 1020200111212011212000 |
4 | 30021313302131202 |
5 | 203211413141232 |
6 | 5554553544430 |
7 | 641255413320 |
oct | 141167623542 |
9 | 36614764760 |
10 | 13050521442 |
11 | 5597751a12 |
12 | 2642715116 |
13 | 12cc9b054a |
14 | 8bb35ad10 |
15 | 515ad127c |
hex | 309df2762 |
13050521442 has 32 divisors (see below), whose sum is σ = 33144182400. Its totient is φ = 3728720304.
The previous prime is 13050521417. The next prime is 13050521447. The reversal of 13050521442 is 24412505031.
13050521442 is a `hidden beast` number, since 13 + 0 + 505 + 2 + 144 + 2 = 666.
It is a super-2 number, since 2×130505214422 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (13050521447) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17262217 + ... + 17262972.
It is an arithmetic number, because the mean of its divisors is an integer number (1035755700).
Almost surely, 213050521442 is an apocalyptic number.
13050521442 is an abundant number, since it is smaller than the sum of its proper divisors (20093660958).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13050521442 is a wasteful number, since it uses less digits than its factorization.
13050521442 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34525207 (or 34525201 counting only the distinct ones).
The product of its (nonzero) digits is 4800, while the sum is 27.
The spelling of 13050521442 in words is "thirteen billion, fifty million, five hundred twenty-one thousand, four hundred forty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.081 sec. • engine limits •