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4788280 = 23573349
BaseRepresentation
bin10010010001000000111000
3100000021021201
4102101000320
52211211110
6250343544
755462000
oct22210070
910007251
104788280
112780562
12172abb4
13cb8603
148c9000
15648b3a
hex491038

4788280 has 64 divisors (see below), whose sum is σ = 12600000. Its totient is φ = 1636992.

The previous prime is 4788257. The next prime is 4788283. The reversal of 4788280 is 828874.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4788283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13546 + ... + 13894.

It is an arithmetic number, because the mean of its divisors is an integer number (196875).

Almost surely, 24788280 is an apocalyptic number.

4788280 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 4788280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6300000).

4788280 is an abundant number, since it is smaller than the sum of its proper divisors (7811720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4788280 is a wasteful number, since it uses less digits than its factorization.

4788280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 4788280 is about 2188.2138835132. The cubic root of 4788280 is about 168.5491290731.

The spelling of 4788280 in words is "four million, seven hundred eighty-eight thousand, two hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 140 196 245 280 343 349 392 490 686 698 980 1372 1396 1715 1745 1960 2443 2744 2792 3430 3490 4886 6860 6980 9772 12215 13720 13960 17101 19544 24430 34202 48860 68404 85505 97720 119707 136808 171010 239414 342020 478828 598535 684040 957656 1197070 2394140 4788280