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11512480 = 255719541
BaseRepresentation
bin101011111010…
…101010100000
3210122220011011
4223322222200
510421344410
61050430304
7166566040
oct53725240
923586134
1011512480
116553551
123a32394
132501125
141759720
15102618a
hexafaaa0

11512480 has 96 divisors (see below), whose sum is σ = 32780160. Its totient is φ = 3732480.

The previous prime is 11512427. The next prime is 11512481. The reversal of 11512480 is 8421511.

11512480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (11512481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21010 + ... + 21550.

It is an arithmetic number, because the mean of its divisors is an integer number (341460).

Almost surely, 211512480 is an apocalyptic number.

11512480 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 11512480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16390080).

11512480 is an abundant number, since it is smaller than the sum of its proper divisors (21267680).

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

11512480 is a wasteful number, since it uses less digits than its factorization.

11512480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 11512480 is about 3393.0045682256. The cubic root of 11512480 is about 225.7994932418.

Adding to 11512480 its reverse (8421511), we get a palindrome (19933991).

The spelling of 11512480 in words is "eleven million, five hundred twelve thousand, four hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 19 20 28 32 35 38 40 56 70 76 80 95 112 133 140 152 160 190 224 266 280 304 380 532 541 560 608 665 760 1064 1082 1120 1330 1520 2128 2164 2660 2705 3040 3787 4256 4328 5320 5410 7574 8656 10279 10640 10820 15148 17312 18935 20558 21280 21640 30296 37870 41116 43280 51395 60592 71953 75740 82232 86560 102790 121184 143906 151480 164464 205580 287812 302960 328928 359765 411160 575624 605920 719530 822320 1151248 1439060 1644640 2302496 2878120 5756240 11512480