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11833380 = 22325132389
BaseRepresentation
bin101101001001…
…000000100100
3211021012100100
4231021000210
511012132010
61101344100
7202403436
oct55110044
924235310
1011833380
116752659
123b68030
1325b4200
141800656
15108b2c0
hexb49024

11833380 has 108 divisors (see below), whose sum is σ = 38968020. Its totient is φ = 2905344.

The previous prime is 11833369. The next prime is 11833387. The reversal of 11833380 is 8333811.

It can be written as a sum of positive squares in 6 ways, for example, as 3779136 + 8054244 = 1944^2 + 2838^2 .

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (11833387) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 30226 + ... + 30614.

It is an arithmetic number, because the mean of its divisors is an integer number (360815).

Almost surely, 211833380 is an apocalyptic number.

11833380 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 11833380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19484010).

11833380 is an abundant number, since it is smaller than the sum of its proper divisors (27134640).

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

11833380 is a wasteful number, since it uses less digits than its factorization.

11833380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 11833380 is about 3439.9680231072. The cubic root of 11833380 is about 227.8782822163.

It can be divided in two parts, 1 and 1833380, that added together give a palindrome (1833381).

The spelling of 11833380 in words is "eleven million, eight hundred thirty-three thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 169 180 195 234 260 338 389 390 468 507 585 676 778 780 845 1014 1167 1170 1521 1556 1690 1945 2028 2334 2340 2535 3042 3380 3501 3890 4668 5057 5070 5835 6084 7002 7605 7780 10114 10140 11670 14004 15171 15210 17505 20228 23340 25285 30342 30420 35010 45513 50570 60684 65741 70020 75855 91026 101140 131482 151710 182052 197223 227565 262964 303420 328705 394446 455130 591669 657410 788892 910260 986115 1183338 1314820 1972230 2366676 2958345 3944460 5916690 11833380