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1141213 = 4992287
BaseRepresentation
bin100010110100111011101
32010222110011
410112213131
5243004323
640243221
712462103
oct4264735
92128404
101141213
1170a457
12470511
1330c598
14219c73
1517820d
hex1169dd

1141213 has 4 divisors (see below), whose sum is σ = 1144000. Its totient is φ = 1138428.

The previous prime is 1141171. The next prime is 1141219. The reversal of 1141213 is 3121411.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3121411 = 4766413.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1141213 is a prime.

It is a super-2 number, since 2×11412132 = 2604734222738, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1141193 and 1141202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141219) 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, 645 + ... + 1642.

It is an arithmetic number, because the mean of its divisors is an integer number (286000).

21141213 is an apocalyptic number.

It is an amenable number.

1141213 is a deficient number, since it is larger than the sum of its proper divisors (2787).

1141213 is an equidigital number, since it uses as much as digits as its factorization.

1141213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786.

The product of its digits is 24, while the sum is 13.

The square root of 1141213 is about 1068.2757134748. The cubic root of 1141213 is about 104.5014308085.

Adding to 1141213 its reverse (3121411), we get a palindrome (4262624).

The spelling of 1141213 in words is "one million, one hundred forty-one thousand, two hundred thirteen".

Divisors: 1 499 2287 1141213