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11280353 = 71611479
BaseRepresentation
bin101011000001…
…111111100001
3210020002201212
4223001333201
510341432403
61041435505
7164611220
oct53017741
923202655
1011280353
116405107
12393bb95
13244c586
1416d8cb7
15ecc4d8
hexac1fe1

11280353 has 4 divisors (see below), whose sum is σ = 12891840. Its totient is φ = 9668868.

The previous prime is 11280341. The next prime is 11280377. The reversal of 11280353 is 35308211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11280353 - 24 = 11280337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11280323) 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 3 ways as a sum of consecutive naturals, for example, 805733 + ... + 805746.

It is an arithmetic number, because the mean of its divisors is an integer number (3222960).

Almost surely, 211280353 is an apocalyptic number.

It is an amenable number.

11280353 is a deficient number, since it is larger than the sum of its proper divisors (1611487).

11280353 is an equidigital number, since it uses as much as digits as its factorization.

11280353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611486.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 11280353 is about 3358.6236764484. The cubic root of 11280353 is about 224.2715735179.

Adding to 11280353 its reverse (35308211), we get a palindrome (46588564).

The spelling of 11280353 in words is "eleven million, two hundred eighty thousand, three hundred fifty-three".

Divisors: 1 7 1611479 11280353