| Base | Representation |
|---|---|
| bin | 10110110111001… |
| … | …001101101000100 |
| 3 | 222201201200111100 |
| 4 | 112313021231010 |
| 5 | 1241142301140 |
| 6 | 102020540100 |
| 7 | 12335114202 |
| oct | 2667115504 |
| 9 | 881650440 |
| 10 | 383556420 |
| 11 | 187564685 |
| 12 | a8551630 |
| 13 | 61604b80 |
| 14 | 38d24072 |
| 15 | 23a16530 |
| hex | 16dc9b44 |
383556420 has 144 divisors (see below), whose sum is σ = 1319048640. Its totient is φ = 89434368.
The previous prime is 383556419. The next prime is 383556421. The reversal of 383556420 is 24655383.
It is a happy number.
383556420 is a `hidden beast` number, since 3 + 8 + 3 + 5 + 5 + 642 + 0 = 666.
383556420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (383556419) and next prime (383556421).
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 (383556421) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40147 + ... + 48773.
It is an arithmetic number, because the mean of its divisors is an integer number (9160060).
Almost surely, 2383556420 is an apocalyptic number.
383556420 is a gapful number since it is divisible by the number (30) 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 383556420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (659524320).
383556420 is an abundant number, since it is smaller than the sum of its proper divisors (935492220).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
383556420 is a wasteful number, since it uses less digits than its factorization.
383556420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8674 (or 8669 counting only the distinct ones).
The product of its (nonzero) digits is 86400, while the sum is 36.
The square root of 383556420 is about 19584.5964982687. The cubic root of 383556420 is about 726.5682548694.
The spelling of 383556420 in words is "three hundred eighty-three million, five hundred fifty-six thousand, four hundred twenty".
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