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30123022 = 2109138179
BaseRepresentation
bin111001011101…
…0010000001110
32002200102000111
41302322100032
530202414042
62553350234
7514020136
oct162722016
962612014
1030123022
1116004966
12a10837a
136318c97
144001ac6
1529a0517
hex1cba40e

30123022 has 8 divisors (see below), whose sum is σ = 45599400. Its totient is φ = 14923224.

The previous prime is 30123019. The next prime is 30123047. The reversal of 30123022 is 22032103.

It is a happy number.

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 = 30122993 and 30123011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68872 + ... + 69307.

It is an arithmetic number, because the mean of its divisors is an integer number (5699925).

Almost surely, 230123022 is an apocalyptic number.

30123022 is a deficient number, since it is larger than the sum of its proper divisors (15476378).

30123022 is a wasteful number, since it uses less digits than its factorization.

30123022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138290.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 30123022 is about 5488.4444062047. Note that the first 4 decimals coincide. The cubic root of 30123022 is about 311.1474024085.

Adding to 30123022 its reverse (22032103), we get a palindrome (52155125).

The spelling of 30123022 in words is "thirty million, one hundred twenty-three thousand, twenty-two".

Divisors: 1 2 109 218 138179 276358 15061511 30123022