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12260730 = 235408691
BaseRepresentation
bin101110110001…
…010101111010
3212001220120010
4232301111322
511114320410
61114442350
7206133366
oct56612572
925056503
1012260730
116a14739
1241333b6
132703891
1418b22a6
151122c20
hexbb157a

12260730 has 16 divisors (see below), whose sum is σ = 29425824. Its totient is φ = 3269520.

The previous prime is 12260713. The next prime is 12260741. The reversal of 12260730 is 3706221.

It is a happy number.

It is a super-3 number, since 3×122607303 (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12260697 and 12260706.

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, 204316 + ... + 204375.

It is an arithmetic number, because the mean of its divisors is an integer number (1839114).

Almost surely, 212260730 is an apocalyptic number.

12260730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12260730 is an abundant number, since it is smaller than the sum of its proper divisors (17165094).

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

12260730 is a wasteful number, since it uses less digits than its factorization.

12260730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408701.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 12260730 is about 3501.5325216254. The cubic root of 12260730 is about 230.5891010581.

Adding to 12260730 its reverse (3706221), we get a palindrome (15966951).

The spelling of 12260730 in words is "twelve million, two hundred sixty thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 408691 817382 1226073 2043455 2452146 4086910 6130365 12260730