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30022 = 217883
BaseRepresentation
bin111010101000110
31112011221
413111012
51430042
6350554
7153346
oct72506
945157
1030022
1120613
121545a
1310885
14ad26
158d67
hex7546

30022 has 8 divisors (see below), whose sum is σ = 47736. Its totient is φ = 14112.

The previous prime is 30013. The next prime is 30029. The reversal of 30022 is 22003.

Adding to 30022 its reverse (22003), we get a palindrome (52025).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 29987 and 30014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30029) by changing a digit.

30022 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408 + ... + 475.

It is an arithmetic number, because the mean of its divisors is an integer number (5967).

230022 is an apocalyptic number.

30022 is a deficient number, since it is larger than the sum of its proper divisors (17714).

30022 is a wasteful number, since it uses less digits than its factorization.

30022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902.

The product of its (nonzero) digits is 12, while the sum is 7.

The square root of 30022 is about 173.2685776475. The cubic root of 30022 is about 31.0799186609.

The spelling of 30022 in words is "thirty thousand, twenty-two".

Divisors: 1 2 17 34 883 1766 15011 30022