| Base | Representation |
|---|---|
| bin | 101010100100010… |
| … | …1000010000000100 |
| 3 | 10200112122110002000 |
| 4 | 1111020220100010 |
| 5 | 10411122403010 |
| 6 | 353421545300 |
| 7 | 50252364636 |
| oct | 12510502004 |
| 9 | 3615573060 |
| 10 | 1428325380 |
| 11 | 673285aa9 |
| 12 | 33a415230 |
| 13 | 199bb8461 |
| 14 | d79a6a56 |
| 15 | 855dc7c0 |
| hex | 55228404 |
1428325380 has 288 divisors, whose sum is σ = 4977262080. Its totient is φ = 338826240.
The previous prime is 1428325343. The next prime is 1428325387. The reversal of 1428325380 is 835238241.
1428325380 is a `hidden beast` number, since 1 + 42 + 83 + 2 + 538 + 0 = 666.
It is a super-2 number, since 2×14283253802 = 4080226782304288800, which contains 22 as substring.
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (1428325387) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3313765 + ... + 3314195.
It is an arithmetic number, because the mean of its divisors is an integer number (17282160).
Almost surely, 21428325380 is an apocalyptic number.
1428325380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1428325380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2488631040).
1428325380 is an abundant number, since it is smaller than the sum of its proper divisors (3548936700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1428325380 is a wasteful number, since it uses less digits than its factorization.
1428325380 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 504 (or 477 counting only the distinct ones).
The product of its (nonzero) digits is 46080, while the sum is 36.
The square root of 1428325380 is about 37793.1922441066. The cubic root of 1428325380 is about 1126.1832173386.
The spelling of 1428325380 in words is "one billion, four hundred twenty-eight million, three hundred twenty-five thousand, three hundred eighty".
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