Base | Representation |
---|---|
bin | 1111000100100… |
… | …10010100001110 |
3 | 22210220020012110 |
4 | 13202102110032 |
5 | 224331202210 |
6 | 20313444450 |
7 | 3063424002 |
oct | 742222416 |
9 | 283806173 |
10 | 126428430 |
11 | 65402607 |
12 | 36410726 |
13 | 20267c2b |
14 | 12b10702 |
15 | b175420 |
hex | 789250e |
126428430 has 16 divisors (see below), whose sum is σ = 303428304. Its totient is φ = 33714240.
The previous prime is 126428411. The next prime is 126428431. The reversal of 126428430 is 34824621.
It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4214281 = 126428430 / (1 + 2 + 6 + 4 + 2 + 8 + 4 + 3 + 0).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (126428431) 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, 2107111 + ... + 2107170.
It is an arithmetic number, because the mean of its divisors is an integer number (18964269).
Almost surely, 2126428430 is an apocalyptic number.
126428430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
126428430 is an abundant number, since it is smaller than the sum of its proper divisors (176999874).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
126428430 is a wasteful number, since it uses less digits than its factorization.
126428430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4214291.
The product of its (nonzero) digits is 9216, while the sum is 30.
The square root of 126428430 is about 11244.0397544655. The cubic root of 126428430 is about 501.8973642439.
The spelling of 126428430 in words is "one hundred twenty-six million, four hundred twenty-eight thousand, four hundred thirty".
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