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1330993 = 4728319
BaseRepresentation
bin101000100111100110001
32111121210001
411010330301
5320042433
644310001
714212306
oct5047461
92447701
101330993
11829aa4
12542301
13377a91
142690ad
151b457d
hex144f31

1330993 has 4 divisors (see below), whose sum is σ = 1359360. Its totient is φ = 1302628.

The previous prime is 1330963. The next prime is 1330997. The reversal of 1330993 is 3990331.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1330993 - 25 = 1330961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330997) 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, 14113 + ... + 14206.

It is an arithmetic number, because the mean of its divisors is an integer number (339840).

21330993 is an apocalyptic number.

It is an amenable number.

1330993 is a deficient number, since it is larger than the sum of its proper divisors (28367).

1330993 is an equidigital number, since it uses as much as digits as its factorization.

1330993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28366.

The product of its (nonzero) digits is 2187, while the sum is 28.

The square root of 1330993 is about 1153.6866992386. The cubic root of 1330993 is about 109.9998071622. Note that the first 3 decimals are identical.

The spelling of 1330993 in words is "one million, three hundred thirty thousand, nine hundred ninety-three".

Divisors: 1 47 28319 1330993