| Base | Representation |
|---|---|
| bin | 101100000011011… |
| … | …1101110100000000 |
| 3 | 10211000112102002000 |
| 4 | 1120012331310000 |
| 5 | 11011411033211 |
| 6 | 402403224000 |
| 7 | 51426446244 |
| oct | 13006756400 |
| 9 | 3730472060 |
| 10 | 1478221056 |
| 11 | 6994653a4 |
| 12 | 353078000 |
| 13 | 1a7338220 |
| 14 | 100474424 |
| 15 | 89b96656 |
| hex | 581bdd00 |
1478221056 has 144 divisors (see below), whose sum is σ = 4707904320. Its totient is φ = 454809600.
The previous prime is 1478221037. The next prime is 1478221079. The reversal of 1478221056 is 6501228741.
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a self number, because there is not a number n which added to its sum of digits gives 1478221056.
It is a congruent number.
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 15 ways as a sum of consecutive naturals, for example, 81631 + ... + 98081.
It is an arithmetic number, because the mean of its divisors is an integer number (32693780).
Almost surely, 21478221056 is an apocalyptic number.
1478221056 is a gapful number since it is divisible by the number (16) 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 1478221056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2353952160).
1478221056 is an abundant number, since it is smaller than the sum of its proper divisors (3229683264).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1478221056 is a wasteful number, since it uses less digits than its factorization.
1478221056 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16489 (or 16469 counting only the distinct ones).
The product of its (nonzero) digits is 26880, while the sum is 36.
The square root of 1478221056 is about 38447.6404477570. The cubic root of 1478221056 is about 1139.1470628307.
Adding to 1478221056 its reverse (6501228741), we get a palindrome (7979449797).
The spelling of 1478221056 in words is "one billion, four hundred seventy-eight million, two hundred twenty-one thousand, fifty-six".
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