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9930309 = 311033001
BaseRepresentation
bin100101111000…
…011001000101
3200200111211020
4211320121011
510020232214
6552501353
7150256224
oct45703105
920614736
109930309
115672874
1233aa859
132098c2c
141466cbb
15d124a9
hex978645

9930309 has 8 divisors (see below), whose sum is σ = 13256832. Its totient is φ = 6612000.

The previous prime is 9930307. The next prime is 9930311. The reversal of 9930309 is 9030399.

It is an interprime number because it is at equal distance from previous prime (9930307) and next prime (9930311).

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

It is not a de Polignac number, because 9930309 - 21 = 9930307 is a prime.

It is a super-2 number, since 2×99303092 = 197222073670962, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9930309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9930307) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1809 + ... + 4809.

It is an arithmetic number, because the mean of its divisors is an integer number (1657104).

Almost surely, 29930309 is an apocalyptic number.

It is an amenable number.

9930309 is a deficient number, since it is larger than the sum of its proper divisors (3326523).

9930309 is a wasteful number, since it uses less digits than its factorization.

9930309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4107.

The product of its (nonzero) digits is 6561, while the sum is 33.

The square root of 9930309 is about 3151.2392800294. The cubic root of 9930309 is about 214.9418194836.

The spelling of 9930309 in words is "nine million, nine hundred thirty thousand, three hundred nine".

Divisors: 1 3 1103 3001 3309 9003 3310103 9930309