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11280706 = 243131171
BaseRepresentation
bin101011000010…
…000101000010
3210020010012221
4223002011002
510341440311
61041441254
7164612233
oct53020502
923203187
1011280706
1164053a8
12394022a
13244c798
1416d908a
15ecc671
hexac2142

11280706 has 8 divisors (see below), whose sum is σ = 17314704. Its totient is φ = 5509140.

The previous prime is 11280701. The next prime is 11280721. The reversal of 11280706 is 60708211.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 65500 + ... + 65671.

It is an arithmetic number, because the mean of its divisors is an integer number (2164338).

Almost surely, 211280706 is an apocalyptic number.

11280706 is a deficient number, since it is larger than the sum of its proper divisors (6033998).

11280706 is a wasteful number, since it uses less digits than its factorization.

11280706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131216.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 11280706 is about 3358.6762273253. The cubic root of 11280706 is about 224.2739128963.

Adding to 11280706 its reverse (60708211), we get a palindrome (71988917).

The spelling of 11280706 in words is "eleven million, two hundred eighty thousand, seven hundred six".

Divisors: 1 2 43 86 131171 262342 5640353 11280706