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11313140 = 2253171257
BaseRepresentation
bin101011001001…
…111111110100
3210021202201012
4223021333310
510344010030
61042251352
7165105626
oct53117764
923252635
1011313140
116427803
123956b58
132461487
141706c16
15ed7095
hexac9ff4

11313140 has 48 divisors (see below), whose sum is σ = 24966144. Its totient is φ = 4300800.

The previous prime is 11313139. The next prime is 11313173. The reversal of 11313140 is 4131311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43892 + ... + 44148.

It is an arithmetic number, because the mean of its divisors is an integer number (520128).

Almost surely, 211313140 is an apocalyptic number.

11313140 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 11313140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12483072).

11313140 is an abundant number, since it is smaller than the sum of its proper divisors (13653004).

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

11313140 is a wasteful number, since it uses less digits than its factorization.

11313140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 11313140 is about 3363.5011520735. The cubic root of 11313140 is about 224.4886494494.

Adding to 11313140 its reverse (4131311), we get a palindrome (15444451).

The spelling of 11313140 in words is "eleven million, three hundred thirteen thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 31 62 71 124 142 155 257 284 310 355 514 620 710 1028 1285 1420 2201 2570 4402 5140 7967 8804 11005 15934 18247 22010 31868 36494 39835 44020 72988 79670 91235 159340 182470 364940 565657 1131314 2262628 2828285 5656570 11313140