Search a number
-
+
4885640 = 235671823
BaseRepresentation
bin10010101000110010001000
3100012012211122
4102220302020
52222320030
6252414412
756345564
oct22506210
910165748
104885640
112837721
121777408
131020a16
149126a4
156678e5
hex4a8c88

4885640 has 32 divisors (see below), whose sum is σ = 11162880. Its totient is φ = 1924032.

The previous prime is 4885633. The next prime is 4885669. The reversal of 4885640 is 465884.

It is a self number, because there is not a number n which added to its sum of digits gives 4885640.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1769 + ... + 3591.

It is an arithmetic number, because the mean of its divisors is an integer number (348840).

Almost surely, 24885640 is an apocalyptic number.

4885640 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 4885640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5581440).

4885640 is an abundant number, since it is smaller than the sum of its proper divisors (6277240).

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

4885640 is a wasteful number, since it uses less digits than its factorization.

4885640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901 (or 1897 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 4885640 is about 2210.3483888292. The cubic root of 4885640 is about 169.6838414524.

The spelling of 4885640 in words is "four million, eight hundred eighty-five thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 67 134 268 335 536 670 1340 1823 2680 3646 7292 9115 14584 18230 36460 72920 122141 244282 488564 610705 977128 1221410 2442820 4885640