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1331002 = 2665501
BaseRepresentation
bin101000100111100111010
32111121210101
411010330322
5320043002
644310014
714212321
oct5047472
92447711
101331002
1182a002
1254230a
13377a9a
142690b8
151b4587
hex144f3a

1331002 has 4 divisors (see below), whose sum is σ = 1996506. Its totient is φ = 665500.

The previous prime is 1330997. The next prime is 1331023. The reversal of 1331002 is 2001331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1207801 + 123201 = 1099^2 + 351^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1331002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332749 + ... + 332752.

21331002 is an apocalyptic number.

1331002 is a deficient number, since it is larger than the sum of its proper divisors (665504).

1331002 is an equidigital number, since it uses as much as digits as its factorization.

1331002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665503.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 1331002 is about 1153.6905997710. The cubic root of 1331002 is about 110.0000550964. Note that the first 4 decimals are identical.

Adding to 1331002 its reverse (2001331), we get a palindrome (3332333).

The spelling of 1331002 in words is "one million, three hundred thirty-one thousand, two".

Divisors: 1 2 665501 1331002