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1130888 = 231171181
BaseRepresentation
bin100010100000110001000
32010110021202
410110012020
5242142023
640123332
712420023
oct4240610
92113252
101130888
11702720
12466548
13307985
142161ba
15175128
hex114188

1130888 has 32 divisors (see below), whose sum is σ = 2358720. Its totient is φ = 504000.

The previous prime is 1130863. The next prime is 1130929. The reversal of 1130888 is 8880311.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1130888.

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, 6158 + ... + 6338.

It is an arithmetic number, because the mean of its divisors is an integer number (73710).

21130888 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 1130888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1179360).

1130888 is an abundant number, since it is smaller than the sum of its proper divisors (1227832).

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

1130888 is a wasteful number, since it uses less digits than its factorization.

1130888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 1130888 is about 1063.4321793138. The cubic root of 1130888 is about 104.1853204638.

The spelling of 1130888 in words is "one million, one hundred thirty thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 11 22 44 71 88 142 181 284 362 568 724 781 1448 1562 1991 3124 3982 6248 7964 12851 15928 25702 51404 102808 141361 282722 565444 1130888