Search a number
-
+
12251130 = 235439497
BaseRepresentation
bin101110101110…
…111111111010
3212001102101120
4232232333322
511114014010
61114330110
7206063403
oct56567772
925042346
1012251130
116a08501
124129936
1326cc3b8
1418ac9aa
15111ee70
hexbaeffa

12251130 has 32 divisors (see below), whose sum is σ = 30089664. Its totient is φ = 3190656.

The previous prime is 12251093. The next prime is 12251131. The reversal of 12251130 is 3115221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (12251131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3459 + ... + 6038.

It is an arithmetic number, because the mean of its divisors is an integer number (940302).

Almost surely, 212251130 is an apocalyptic number.

12251130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12251130 is an abundant number, since it is smaller than the sum of its proper divisors (17838534).

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

12251130 is a wasteful number, since it uses less digits than its factorization.

12251130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9550.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 12251130 is about 3500.1614248489. The cubic root of 12251130 is about 230.5289025387.

Adding to 12251130 its reverse (3115221), we get a palindrome (15366351).

The spelling of 12251130 in words is "twelve million, two hundred fifty-one thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 43 86 129 215 258 430 645 1290 9497 18994 28491 47485 56982 94970 142455 284910 408371 816742 1225113 2041855 2450226 4083710 6125565 12251130