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11312860 = 2251323347
BaseRepresentation
bin101011001001…
…111011011100
3210021202022211
4223021323130
510344002420
61042250204
7165105046
oct53117334
923252284
1011312860
116427579
123956964
132461300
141706a96
15ed6e5a
hexac9edc

11312860 has 36 divisors (see below), whose sum is σ = 25732728. Its totient is φ = 4175808.

The previous prime is 11312839. The next prime is 11312863. The reversal of 11312860 is 6821311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1707 + ... + 5053.

It is an arithmetic number, because the mean of its divisors is an integer number (714798).

Almost surely, 211312860 is an apocalyptic number.

11312860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11312860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12866364).

11312860 is an abundant number, since it is smaller than the sum of its proper divisors (14419868).

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

11312860 is a wasteful number, since it uses less digits than its factorization.

11312860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3382 (or 3367 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 11312860 is about 3363.4595285212. The cubic root of 11312860 is about 224.4867974041.

The spelling of 11312860 in words is "eleven million, three hundred twelve thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 169 260 338 676 845 1690 3347 3380 6694 13388 16735 33470 43511 66940 87022 174044 217555 435110 565643 870220 1131286 2262572 2828215 5656430 11312860