Search a number
-
+
12458980 = 2252921481
BaseRepresentation
bin101111100001…
…101111100100
3212102222111201
4233201233210
511142141410
61123012244
7210620362
oct57415744
925388451
1012458980
11703a686
12420a084
132772ba1
141924632
15116183a
hexbe1be4

12458980 has 24 divisors (see below), whose sum is σ = 27067320. Its totient is φ = 4811520.

The previous prime is 12458969. The next prime is 12459001. The reversal of 12458980 is 8985421.

It can be written as a sum of positive squares in 4 ways, for example, as 2359296 + 10099684 = 1536^2 + 3178^2 .

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, 10161 + ... + 11320.

It is an arithmetic number, because the mean of its divisors is an integer number (1127805).

Almost surely, 212458980 is an apocalyptic number.

12458980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12458980 is an abundant number, since it is smaller than the sum of its proper divisors (14608340).

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

12458980 is a wasteful number, since it uses less digits than its factorization.

12458980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21519 (or 21517 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 12458980 is about 3529.7280348491. The cubic root of 12458980 is about 231.8252995147.

The spelling of 12458980 in words is "twelve million, four hundred fifty-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 21481 42962 85924 107405 214810 429620 622949 1245898 2491796 3114745 6229490 12458980