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11814880 = 2557211137
BaseRepresentation
bin101101000100…
…011111100000
3211020020222011
4231010133200
511011034010
61101122304
7202265500
oct55043740
924206864
1011814880
11673a770
123b59394
1325a896c
1417d7a00
151085a8a
hexb447e0

11814880 has 144 divisors (see below), whose sum is σ = 35680176. Its totient is φ = 3655680.

The previous prime is 11814871. The next prime is 11814889. The reversal of 11814880 is 8841811.

It is an interprime number because it is at equal distance from previous prime (11814871) and next prime (11814889).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11814889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86172 + ... + 86308.

It is an arithmetic number, because the mean of its divisors is an integer number (247779).

Almost surely, 211814880 is an apocalyptic number.

11814880 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 11814880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17840088).

11814880 is an abundant number, since it is smaller than the sum of its proper divisors (23865296).

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

11814880 is a wasteful number, since it uses less digits than its factorization.

11814880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 31.

The square root of 11814880 is about 3437.2779928310. The cubic root of 11814880 is about 227.7594672747.

The spelling of 11814880 in words is "eleven million, eight hundred fourteen thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 11 14 16 20 22 28 32 35 40 44 49 55 56 70 77 80 88 98 110 112 137 140 154 160 176 196 220 224 245 274 280 308 352 385 392 440 490 539 548 560 616 685 770 784 880 959 980 1078 1096 1120 1232 1370 1507 1540 1568 1760 1918 1960 2156 2192 2464 2695 2740 3014 3080 3836 3920 4312 4384 4795 5390 5480 6028 6160 6713 7535 7672 7840 8624 9590 10549 10780 10960 12056 12320 13426 15070 15344 17248 19180 21098 21560 21920 24112 26852 30140 30688 33565 38360 42196 43120 48224 52745 53704 60280 67130 73843 76720 84392 86240 105490 107408 120560 134260 147686 153440 168784 210980 214816 241120 268520 295372 337568 369215 421960 537040 590744 738430 843920 1074080 1181488 1476860 1687840 2362976 2953720 5907440 11814880