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1283113 = 13891109
BaseRepresentation
bin100111001010000101001
32102012002201
410321100221
5312024423
643300201
713622566
oct4712051
92365081
101283113
117a7027
1251a661
1335c050
1425586d
151a52ad
hex139429

1283113 has 8 divisors (see below), whose sum is σ = 1398600. Its totient is φ = 1170048.

The previous prime is 1283111. The next prime is 1283119. The reversal of 1283113 is 3113821.

It can be written as a sum of positive squares in 4 ways, for example, as 110224 + 1172889 = 332^2 + 1083^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1283113 - 21 = 1283111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1283111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603 + ... + 1711.

It is an arithmetic number, because the mean of its divisors is an integer number (174825).

21283113 is an apocalyptic number.

1283113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1283113 is a deficient number, since it is larger than the sum of its proper divisors (115487).

1283113 is a wasteful number, since it uses less digits than its factorization.

1283113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211.

The product of its digits is 144, while the sum is 19.

The square root of 1283113 is about 1132.7457790696. The cubic root of 1283113 is about 108.6646540500.

Adding to 1283113 its reverse (3113821), we get a palindrome (4396934).

The spelling of 1283113 in words is "one million, two hundred eighty-three thousand, one hundred thirteen".

Divisors: 1 13 89 1109 1157 14417 98701 1283113