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30444307 = 613891283
BaseRepresentation
bin111010000100…
…0101100010011
32010021201201221
41310020230103
530243204212
63004305511
7516525625
oct164105423
963251657
1030444307
1116204293
12a242297
1363cc2aa
144086c15
152a15807
hex1d08b13

30444307 has 8 divisors (see below), whose sum is σ = 31047120. Its totient is φ = 29844960.

The previous prime is 30444299. The next prime is 30444311. The reversal of 30444307 is 70344403.

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 30444307 - 23 = 30444299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30444397) 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, 23088 + ... + 24370.

It is an arithmetic number, because the mean of its divisors is an integer number (3880890).

Almost surely, 230444307 is an apocalyptic number.

30444307 is a deficient number, since it is larger than the sum of its proper divisors (602813).

30444307 is a wasteful number, since it uses less digits than its factorization.

30444307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 30444307 is about 5517.6359974177. The cubic root of 30444307 is about 312.2497008012.

The spelling of 30444307 in words is "thirty million, four hundred forty-four thousand, three hundred seven".

Divisors: 1 61 389 1283 23729 78263 499087 30444307