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11280708 = 223437941
BaseRepresentation
bin101011000010…
…000101000100
3210020010020000
4223002011010
510341440313
61041441300
7164612235
oct53020504
923203200
1011280708
1164053aa
123940230
13244c79a
1416d908c
15ecc673
hexac2144

11280708 has 60 divisors (see below), whose sum is σ = 30319212. Its totient is φ = 3654720.

The previous prime is 11280701. The next prime is 11280721. The reversal of 11280708 is 80708211.

It can be written as a sum of positive squares in 2 ways, for example, as 8714304 + 2566404 = 2952^2 + 1602^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11280701) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11518 + ... + 12458.

Almost surely, 211280708 is an apocalyptic number.

11280708 is a gapful number since it is divisible by the number (18) 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 11280708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15159606).

11280708 is an abundant number, since it is smaller than the sum of its proper divisors (19038504).

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

11280708 is a wasteful number, since it uses less digits than its factorization.

11280708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 11280708 is about 3358.6765250616. The cubic root of 11280708 is about 224.2739261504.

Adding to 11280708 its reverse (80708211), we get a palindrome (91988919).

The spelling of 11280708 in words is "eleven million, two hundred eighty thousand, seven hundred eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 37 54 74 81 108 111 148 162 222 324 333 444 666 941 999 1332 1882 1998 2823 2997 3764 3996 5646 5994 8469 11292 11988 16938 25407 33876 34817 50814 69634 76221 101628 104451 139268 152442 208902 304884 313353 417804 626706 940059 1253412 1880118 2820177 3760236 5640354 11280708