Base | Representation |
---|---|
bin | 10111010111001000… |
… | …01100110011111000 |
3 | 1012101002010011121102 |
4 | 23223210030303320 |
5 | 201141232220013 |
6 | 5432312030532 |
7 | 622542556526 |
oct | 135344146370 |
9 | 35332104542 |
10 | 12542070008 |
11 | 5356742916 |
12 | 2520392448 |
13 | 124b559700 |
14 | 86da05316 |
15 | 4d6148d58 |
hex | 2eb90ccf8 |
12542070008 has 96 divisors (see below), whose sum is σ = 27113045760. Its totient is φ = 5417717760.
The previous prime is 12542069999. The next prime is 12542070019. The reversal of 12542070008 is 80007024521.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4388516 + ... + 4391372.
It is an arithmetic number, because the mean of its divisors is an integer number (282427560).
Almost surely, 212542070008 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 12542070008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13556522880).
12542070008 is an abundant number, since it is smaller than the sum of its proper divisors (14570975752).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12542070008 is a wasteful number, since it uses less digits than its factorization.
12542070008 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3097 (or 3080 counting only the distinct ones).
The product of its (nonzero) digits is 4480, while the sum is 29.
Adding to 12542070008 its reverse (80007024521), we get a palindrome (92549094529).
The spelling of 12542070008 in words is "twelve billion, five hundred forty-two million, seventy thousand, eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •