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1284113 = 23311801
BaseRepresentation
bin100111001100000010001
32102020110202
410321200101
5312042423
643304545
713625525
oct4714021
92366422
101284113
117a7856
1251b155
1335c63c
14255d85
151a5728
hex139811

1284113 has 8 divisors (see below), whose sum is σ = 1383936. Its totient is φ = 1188000.

The previous prime is 1284083. The next prime is 1284131. The reversal of 1284113 is 3114821.

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 1284113 - 220 = 235537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1284313) 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, 188 + ... + 1613.

It is an arithmetic number, because the mean of its divisors is an integer number (172992).

21284113 is an apocalyptic number.

It is an amenable number.

1284113 is a deficient number, since it is larger than the sum of its proper divisors (99823).

1284113 is a wasteful number, since it uses less digits than its factorization.

1284113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855.

The product of its digits is 192, while the sum is 20.

The square root of 1284113 is about 1133.1870984087. The cubic root of 1284113 is about 108.6928761517.

Adding to 1284113 its reverse (3114821), we get a palindrome (4398934).

The spelling of 1284113 in words is "one million, two hundred eighty-four thousand, one hundred thirteen".

Divisors: 1 23 31 713 1801 41423 55831 1284113