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30444973 = 1319123259
BaseRepresentation
bin111010000100…
…0110110101101
32010021202122121
41310020312231
530243214343
63004312541
7516530566
oct164106655
963252577
1030444973
1116204839
12a242751
1363cc6a0
14408716d
152a15aed
hex1d08dad

30444973 has 8 divisors (see below), whose sum is σ = 34512800. Its totient is φ = 26623728.

The previous prime is 30444937. The next prime is 30445027. The reversal of 30444973 is 37944403.

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 30444973 - 213 = 30436781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30444913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61383 + ... + 61876.

It is an arithmetic number, because the mean of its divisors is an integer number (4314100).

Almost surely, 230444973 is an apocalyptic number.

It is an amenable number.

30444973 is a deficient number, since it is larger than the sum of its proper divisors (4067827).

30444973 is a wasteful number, since it uses less digits than its factorization.

30444973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123291.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 30444973 is about 5517.6963490210. The cubic root of 30444973 is about 312.2519777106.

The spelling of 30444973 in words is "thirty million, four hundred forty-four thousand, nine hundred seventy-three".

Divisors: 1 13 19 247 123259 1602367 2341921 30444973