Base | Representation |
---|---|
bin | 1000010011101101000… |
… | …1111010000011100000 |
3 | 111122101222210112222111 |
4 | 2010323101322003200 |
5 | 4314301442031002 |
6 | 145322450245104 |
7 | 13211641661350 |
oct | 2047321720340 |
9 | 448358715874 |
10 | 142728470752 |
11 | 5559255664a |
12 | 237b3586794 |
13 | 105c7c3662a |
14 | 6c9db52b60 |
15 | 3aa552c3d7 |
hex | 213b47a0e0 |
142728470752 has 96 divisors (see below), whose sum is σ = 323584777152. Its totient is φ = 60705275904.
The previous prime is 142728470713. The next prime is 142728470779. The reversal of 142728470752 is 257074827241.
It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 142728470696 and 142728470705.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16331728 + ... + 16340464.
It is an arithmetic number, because the mean of its divisors is an integer number (3370674762).
Almost surely, 2142728470752 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 142728470752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161792388576).
142728470752 is an abundant number, since it is smaller than the sum of its proper divisors (180856306400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142728470752 is a wasteful number, since it uses less digits than its factorization.
142728470752 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9300 (or 9292 counting only the distinct ones).
The product of its (nonzero) digits is 1756160, while the sum is 49.
The spelling of 142728470752 in words is "one hundred forty-two billion, seven hundred twenty-eight million, four hundred seventy thousand, seven hundred fifty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.078 sec. • engine limits •