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30444277 = 137359619
BaseRepresentation
bin111010000100…
…0101011110101
32010021201200211
41310020223311
530243204102
63004305421
7516525553
oct164105365
963251624
1030444277
1116204266
12a242271
1363cc286
144086bd3
152a157d7
hex1d08af5

30444277 has 8 divisors (see below), whose sum is σ = 30801600. Its totient is φ = 30089184.

The previous prime is 30444257. The next prime is 30444283. The reversal of 30444277 is 77244403.

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 30444277 - 223 = 22055669 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 (30444217) 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, 48874 + ... + 49492.

It is an arithmetic number, because the mean of its divisors is an integer number (3850200).

Almost surely, 230444277 is an apocalyptic number.

It is an amenable number.

30444277 is a deficient number, since it is larger than the sum of its proper divisors (357323).

30444277 is a wasteful number, since it uses less digits than its factorization.

30444277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 30444277 is about 5517.6332788615. The cubic root of 30444277 is about 312.2495982369.

The spelling of 30444277 in words is "thirty million, four hundred forty-four thousand, two hundred seventy-seven".

Divisors: 1 137 359 619 49183 84803 222221 30444277