[go: up one dir, main page]

Search a number
-
+
488220 = 223579103
BaseRepresentation
bin1110111001100011100
3220210201020
41313030130
5111110340
614244140
74102245
oct1671434
9823636
10488220
11303897
121b6650
131412b5
14c9ccc
15999d0
hex7731c

488220 has 48 divisors (see below), whose sum is σ = 1397760. Its totient is φ = 127296.

The previous prime is 488209. The next prime is 488227. The reversal of 488220 is 22884.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4689 + ... + 4791.

It is an arithmetic number, because the mean of its divisors is an integer number (29120).

2488220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 488220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698880).

488220 is an abundant number, since it is smaller than the sum of its proper divisors (909540).

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

488220 is a wasteful number, since it uses less digits than its factorization.

488220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 488220 is about 698.7274146618. The cubic root of 488220 is about 78.7417728871.

The spelling of 488220 in words is "four hundred eighty-eight thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 79 103 158 206 237 309 316 395 412 474 515 618 790 948 1030 1185 1236 1545 1580 2060 2370 3090 4740 6180 8137 16274 24411 32548 40685 48822 81370 97644 122055 162740 244110 488220