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30224753 = 132324981
BaseRepresentation
bin111001101001…
…1000101110001
32002212120120022
41303103011301
530214143003
62555453225
7514622546
oct163230561
962776508
1030224753
1116074339
12a157215
136353390
14402abcd
1529c0738
hex1cd3171

30224753 has 4 divisors (see below), whose sum is σ = 32549748. Its totient is φ = 27899760.

The previous prime is 30224731. The next prime is 30224791. The reversal of 30224753 is 35742203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35742203 = 75106029.

It can be written as a sum of positive squares in 2 ways, for example, as 4133089 + 26091664 = 2033^2 + 5108^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30224753 is a prime.

It is a super-2 number, since 2×302247532 = 1827071387822018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30224723) 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 3 ways as a sum of consecutive naturals, for example, 1162478 + ... + 1162503.

It is an arithmetic number, because the mean of its divisors is an integer number (8137437).

Almost surely, 230224753 is an apocalyptic number.

It is an amenable number.

30224753 is a deficient number, since it is larger than the sum of its proper divisors (2324995).

30224753 is a wasteful number, since it uses less digits than its factorization.

30224753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324994.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 30224753 is about 5497.7043390855. The cubic root of 30224753 is about 311.4972762254.

Adding to 30224753 its reverse (35742203), we get a palindrome (65966956).

The spelling of 30224753 in words is "thirty million, two hundred twenty-four thousand, seven hundred fifty-three".

Divisors: 1 13 2324981 30224753