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1130028 = 22394169
BaseRepresentation
bin100010011111000101100
32010102002220
410103320230
5242130103
640115340
712414354
oct4237054
92112086
101130028
11702009
12465b50
13307473
14215b64
15174c53
hex113e2c

1130028 has 12 divisors (see below), whose sum is σ = 2636760. Its totient is φ = 376672.

The previous prime is 1130023. The next prime is 1130039. The reversal of 1130028 is 8200311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1129989 and 1130016.

It is not an unprimeable number, because it can be changed into a prime (1130023) 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, 47073 + ... + 47096.

It is an arithmetic number, because the mean of its divisors is an integer number (219730).

21130028 is an apocalyptic number.

It is an amenable number.

1130028 is an abundant number, since it is smaller than the sum of its proper divisors (1506732).

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

1130028 is a wasteful number, since it uses less digits than its factorization.

1130028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94176 (or 94174 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1130028 is about 1063.0277512840. The cubic root of 1130028 is about 104.1589040260.

Adding to 1130028 its reverse (8200311), we get a palindrome (9330339).

The spelling of 1130028 in words is "one million, one hundred thirty thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 94169 188338 282507 376676 565014 1130028