| Base | Representation |
|---|---|
| bin | 11001010101110… |
| … | …001100000101100 |
| 3 | 1002121222021000000 |
| 4 | 121111301200230 |
| 5 | 1332313410340 |
| 6 | 110104104300 |
| 7 | 13351421013 |
| oct | 3125614054 |
| 9 | 1077867000 |
| 10 | 425138220 |
| 11 | 1a8a85701 |
| 12 | ba465090 |
| 13 | 6a1036a0 |
| 14 | 40669a7a |
| 15 | 274cbd30 |
| hex | 1957182c |
425138220 has 168 divisors, whose sum is σ = 1442182896. Its totient is φ = 104602752.
The previous prime is 425138209. The next prime is 425138237. The reversal of 425138220 is 22831524.
425138220 is a `hidden beast` number, since 425 + 13 + 8 + 220 = 666.
425138220 is a nontrivial binomial coefficient, being equal to C(29160, 2).
It is a super-2 number, since 2×4251382202 = 361485012209536800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 188419 + ... + 190661.
It is an arithmetic number, because the mean of its divisors is an integer number (8584422).
Almost surely, 2425138220 is an apocalyptic number.
425138220 is the 29159-th triangular number and also the 14580-th hexagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 425138220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (721091448).
425138220 is an abundant number, since it is smaller than the sum of its proper divisors (1017044676).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
425138220 is a wasteful number, since it uses less digits than its factorization.
425138220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2283 (or 2266 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 27.
The square root of 425138220 is about 20618.8801829779. The cubic root of 425138220 is about 751.9287954121.
Adding to 425138220 its reverse (22831524), we get a palindrome (447969744).
The spelling of 425138220 in words is "four hundred twenty-five million, one hundred thirty-eight thousand, two hundred twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.078 sec. • engine limits •