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22023030 = 2352692729
BaseRepresentation
bin101010000000…
…0101101110110
31112102212220210
41110000231312
521114214110
62104010250
7355123041
oct124005566
945385823
1022023030
1111482257
127460986
1347411a3
142cd3c58
151e00520
hex1500b76

22023030 has 32 divisors (see below), whose sum is σ = 53071200. Its totient is φ = 5848832.

The previous prime is 22023019. The next prime is 22023031. The reversal of 22023030 is 3032022.

It is a junction number, because it is equal to n+sod(n) for n = 22022997 and 22023015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22023031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6706 + ... + 9434.

It is an arithmetic number, because the mean of its divisors is an integer number (1658475).

Almost surely, 222023030 is an apocalyptic number.

22023030 is an abundant number, since it is smaller than the sum of its proper divisors (31048170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22023030 is a wasteful number, since it uses less digits than its factorization.

22023030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 22023030 is about 4692.8701239220. The cubic root of 22023030 is about 280.3016731587.

Adding to 22023030 its reverse (3032022), we get a palindrome (25055052).

The spelling of 22023030 in words is "twenty-two million, twenty-three thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 269 538 807 1345 1614 2690 2729 4035 5458 8070 8187 13645 16374 27290 40935 81870 734101 1468202 2202303 3670505 4404606 7341010 11011515 22023030