Base | Representation |
---|---|
bin | 10010001110100000111000 |
3 | 22222202020110 |
4 | 102032200320 |
5 | 2210344130 |
6 | 250224320 |
7 | 55420101 |
oct | 22164070 |
9 | 8882213 |
10 | 4778040 |
11 | 27738a3 |
12 | 17250a0 |
13 | cb3a57 |
14 | 8c53a8 |
15 | 645ab0 |
hex | 48e838 |
4778040 has 64 divisors (see below), whose sum is σ = 14839200. Its totient is φ = 1229312.
The previous prime is 4778029. The next prime is 4778041. The reversal of 4778040 is 408774.
4778040 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a junction number, because it is equal to n+sod(n) for n = 4777989 and 4778007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (4778041) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2794 + ... + 4166.
Almost surely, 24778040 is an apocalyptic number.
4778040 is a gapful number since it is divisible by the number (40) 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 4778040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7419600).
4778040 is an abundant number, since it is smaller than the sum of its proper divisors (10061160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
4778040 is a wasteful number, since it uses less digits than its factorization.
4778040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1416 (or 1412 counting only the distinct ones).
The product of its (nonzero) digits is 6272, while the sum is 30.
The square root of 4778040 is about 2185.8728233820. The cubic root of 4778040 is about 168.4288927957.
It can be divided in two parts, 47 and 78040, that added together give a palindrome (78087).
The spelling of 4778040 in words is "four million, seven hundred seventy-eight thousand, forty".
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