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11280230 = 251386771
BaseRepresentation
bin101011000001…
…111101100110
3210020002120022
4223001331212
510341431410
61041435142
7164610653
oct53017546
923202508
1011280230
116405005
12393bab2
13244c4c0
1416d8c2a
15ecc455
hexac1f66

11280230 has 16 divisors (see below), whose sum is σ = 21866544. Its totient is φ = 4164960.

The previous prime is 11280223. The next prime is 11280239. The reversal of 11280230 is 3208211.

It is a junction number, because it is equal to n+sod(n) for n = 11280199 and 11280208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11280239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43256 + ... + 43515.

It is an arithmetic number, because the mean of its divisors is an integer number (1366659).

Almost surely, 211280230 is an apocalyptic number.

11280230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11280230 is a deficient number, since it is larger than the sum of its proper divisors (10586314).

11280230 is a wasteful number, since it uses less digits than its factorization.

11280230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86791.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 11280230 is about 3358.6053653265. The cubic root of 11280230 is about 224.2707583690.

Adding to 11280230 its reverse (3208211), we get a palindrome (14488441).

The spelling of 11280230 in words is "eleven million, two hundred eighty thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 86771 173542 433855 867710 1128023 2256046 5640115 11280230