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1213330 = 25121333
BaseRepresentation
bin100101000001110010010
32021122101011
410220032102
5302311310
642001134
713212256
oct4501622
92248334
101213330
11759658
124a61aa
13336361
14238266
1518e78a
hex128392

1213330 has 8 divisors (see below), whose sum is σ = 2184012. Its totient is φ = 485328.

The previous prime is 1213327. The next prime is 1213339. The reversal of 1213330 is 333121.

It can be written as a sum of positive squares in 2 ways, for example, as 1151329 + 62001 = 1073^2 + 249^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1213330.

It is not an unprimeable number, because it can be changed into a prime (1213339) 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, 60657 + ... + 60676.

21213330 is an apocalyptic number.

1213330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213330 is a deficient number, since it is larger than the sum of its proper divisors (970682).

1213330 is a wasteful number, since it uses less digits than its factorization.

1213330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121340.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 1213330 is about 1101.5125963873. The cubic root of 1213330 is about 106.6578877324.

Adding to 1213330 its reverse (333121), we get a palindrome (1546451).

The spelling of 1213330 in words is "one million, two hundred thirteen thousand, three hundred thirty".

Divisors: 1 2 5 10 121333 242666 606665 1213330