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30224839 = 196723743
BaseRepresentation
bin111001101001…
…1000111000111
32002212120200111
41303103013013
530214143324
62555453451
7514623031
oct163230707
962776614
1030224839
1116074407
12a157287
136353428
14402ac51
1529c0794
hex1cd31c7

30224839 has 8 divisors (see below), whose sum is σ = 32291840. Its totient is φ = 28205496.

The previous prime is 30224833. The next prime is 30224851. The reversal of 30224839 is 93842203.

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 30224839 - 211 = 30222791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30224839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30224833) 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, 10599 + ... + 13144.

It is an arithmetic number, because the mean of its divisors is an integer number (4036480).

Almost surely, 230224839 is an apocalyptic number.

30224839 is a deficient number, since it is larger than the sum of its proper divisors (2067001).

30224839 is a wasteful number, since it uses less digits than its factorization.

30224839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23829.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 30224839 is about 5497.7121605264. The cubic root of 30224839 is about 311.4975716647.

The spelling of 30224839 in words is "thirty million, two hundred twenty-four thousand, eight hundred thirty-nine".

Divisors: 1 19 67 1273 23743 451117 1590781 30224839