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1330913 = 1779991
BaseRepresentation
bin101000100111011100001
32111121200002
411010323201
5320042123
644305345
714212133
oct5047341
92447602
101330913
11829a31
12542255
13377a2c
14269053
151b4528
hex144ee1

1330913 has 8 divisors (see below), whose sum is σ = 1428480. Its totient is φ = 1235520.

The previous prime is 1330909. The next prime is 1330933. The reversal of 1330913 is 3190331.

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 1330913 - 22 = 1330909 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330933) 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, 848 + ... + 1838.

It is an arithmetic number, because the mean of its divisors is an integer number (178560).

21330913 is an apocalyptic number.

It is an amenable number.

1330913 is a deficient number, since it is larger than the sum of its proper divisors (97567).

1330913 is an equidigital number, since it uses as much as digits as its factorization.

1330913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087.

The product of its (nonzero) digits is 243, while the sum is 20.

The square root of 1330913 is about 1153.6520272595. The cubic root of 1330913 is about 109.9976032536.

The spelling of 1330913 in words is "one million, three hundred thirty thousand, nine hundred thirteen".

Divisors: 1 17 79 991 1343 16847 78289 1330913