Search a number
-
+
488888444 = 221111111101
BaseRepresentation
bin11101001000111…
…101100001111100
31021001221002212102
4131020331201330
52000123412234
6120302324232
715054324512
oct3510754174
91231832772
10488888444
11230a68140
12117889678
137a394605
1448d024b2
152cdc0c7e
hex1d23d87c

488888444 has 12 divisors (see below), whose sum is σ = 933332568. Its totient is φ = 222222000.

The previous prime is 488888441. The next prime is 488888447. The reversal of 488888444 is 444888884.

It is an interprime number because it is at equal distance from previous prime (488888441) and next prime (488888447).

It is a super-2 number, since 2×4888884442 = 478023821353482272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 488888444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488888441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555507 + ... + 5555594.

It is an arithmetic number, because the mean of its divisors is an integer number (77777714).

Almost surely, 2488888444 is an apocalyptic number.

488888444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

488888444 is a deficient number, since it is larger than the sum of its proper divisors (444444124).

488888444 is a wasteful number, since it uses less digits than its factorization.

488888444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11111116 (or 11111114 counting only the distinct ones).

The product of its digits is 8388608, while the sum is 56.

The square root of 488888444 is about 22110.8218752718. The cubic root of 488888444 is about 787.7769280192.

The spelling of 488888444 in words is "four hundred eighty-eight million, eight hundred eighty-eight thousand, four hundred forty-four".

Divisors: 1 2 4 11 22 44 11111101 22222202 44444404 122222111 244444222 488888444