Base | Representation |
---|---|
bin | 1111010110100… |
… | …11000010111010 |
3 | 22222100020122110 |
4 | 13223103002322 |
5 | 230432300324 |
6 | 20440233150 |
7 | 3122463063 |
oct | 753230272 |
9 | 288306573 |
10 | 128790714 |
11 | 66776408 |
12 | 3716b7b6 |
13 | 208b4230 |
14 | 1316756a |
15 | b490329 |
hex | 7ad30ba |
128790714 has 16 divisors (see below), whose sum is σ = 277395552. Its totient is φ = 39627888.
The previous prime is 128790713. The next prime is 128790737. The reversal of 128790714 is 417097821.
It is a super-3 number, since 3×1287907143 (a number of 25 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is not an unprimeable number, because it can be changed into a prime (128790713) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825504 + ... + 825659.
It is an arithmetic number, because the mean of its divisors is an integer number (17337222).
Almost surely, 2128790714 is an apocalyptic number.
128790714 is an abundant number, since it is smaller than the sum of its proper divisors (148604838).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128790714 is a wasteful number, since it uses less digits than its factorization.
128790714 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1651181.
The product of its (nonzero) digits is 28224, while the sum is 39.
The square root of 128790714 is about 11348.5996492959. The cubic root of 128790714 is about 505.0040374804.
The spelling of 128790714 in words is "one hundred twenty-eight million, seven hundred ninety thousand, seven hundred fourteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •