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30716223 = 310238741
BaseRepresentation
bin111010100101…
…1000100111111
32010210112201220
41311023010333
530330404343
63014204423
7522040446
oct165130477
963715656
1030716223
111637a60a
12a353713
136495ca5
144117d5d
152a6b183
hex1d4b13f

30716223 has 4 divisors (see below), whose sum is σ = 40954968. Its totient is φ = 20477480.

The previous prime is 30716197. The next prime is 30716237. The reversal of 30716223 is 32261703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32261703 = 310753901.

It is a cyclic number.

It is not a de Polignac number, because 30716223 - 26 = 30716159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30716193 and 30716202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30711223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5119368 + ... + 5119373.

It is an arithmetic number, because the mean of its divisors is an integer number (10238742).

Almost surely, 230716223 is an apocalyptic number.

30716223 is a deficient number, since it is larger than the sum of its proper divisors (10238745).

30716223 is a wasteful number, since it uses less digits than its factorization.

30716223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10238744.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 30716223 is about 5542.2218468769. The cubic root of 30716223 is about 313.1765753030.

Adding to 30716223 its reverse (32261703), we get a palindrome (62977926).

The spelling of 30716223 in words is "thirty million, seven hundred sixteen thousand, two hundred twenty-three".

Divisors: 1 3 10238741 30716223