Base | Representation |
---|---|
bin | 10000001110100… |
… | …10011000011110 |
3 | 100111011000112220 |
4 | 20013102120132 |
5 | 234322044110 |
6 | 21301410210 |
7 | 3242032503 |
oct | 1007223036 |
9 | 314130486 |
10 | 136128030 |
11 | 6a928005 |
12 | 39709966 |
13 | 22282b3c |
14 | 141174aa |
15 | be3e370 |
hex | 81d261e |
136128030 has 64 divisors (see below), whose sum is σ = 352719360. Its totient is φ = 33520256.
The previous prime is 136127963. The next prime is 136128071. The reversal of 136128030 is 30821631.
It is a super-3 number, since 3×1361280303 (a number of 25 digits) contains 333 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16609 + ... + 23411.
It is an arithmetic number, because the mean of its divisors is an integer number (5511240).
Almost surely, 2136128030 is an apocalyptic number.
136128030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 136128030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176359680).
136128030 is an abundant number, since it is smaller than the sum of its proper divisors (216591330).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
136128030 is a wasteful number, since it uses less digits than its factorization.
136128030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6865.
The product of its (nonzero) digits is 864, while the sum is 24.
The square root of 136128030 is about 11667.3917393735. The cubic root of 136128030 is about 514.4176406478.
Adding to 136128030 its reverse (30821631), we get a palindrome (166949661).
The spelling of 136128030 in words is "one hundred thirty-six million, one hundred twenty-eight thousand, thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •