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1144892 = 227311319
BaseRepresentation
bin100010111100000111100
32011011111102
410113200330
5243114032
640312232
712505610
oct4274074
92134442
101144892
117121a1
12472678
13311168
1421b340
15179362
hex11783c

1144892 has 24 divisors (see below), whose sum is σ = 2365440. Its totient is φ = 474480.

The previous prime is 1144889. The next prime is 1144901. The reversal of 1144892 is 2984411.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 209 + ... + 1527.

It is an arithmetic number, because the mean of its divisors is an integer number (98560).

21144892 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 1144892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1182720).

1144892 is an abundant number, since it is smaller than the sum of its proper divisors (1220548).

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

1144892 is a wasteful number, since it uses less digits than its factorization.

1144892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361 (or 1359 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 1144892 is about 1069.9962616757. The cubic root of 1144892 is about 104.6136062935.

The spelling of 1144892 in words is "one million, one hundred forty-four thousand, eight hundred ninety-two".

Divisors: 1 2 4 7 14 28 31 62 124 217 434 868 1319 2638 5276 9233 18466 36932 40889 81778 163556 286223 572446 1144892