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23213030 = 253317013
BaseRepresentation
bin101100010001…
…1001111100110
31121200100021212
41120203033212
521420304110
62145311422
7401210321
oct130431746
947610255
1023213030
1112115325
127935572
134a69a29
1431237b8
152087e05
hex16233e6

23213030 has 16 divisors (see below), whose sum is σ = 41915664. Its totient is φ = 9255840.

The previous prime is 23212999. The next prime is 23213033. The reversal of 23213030 is 3031232.

It is a junction number, because it is equal to n+sod(n) for n = 23212996 and 23213014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23213033) 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 7 ways as a sum of consecutive naturals, for example, 197 + ... + 6816.

It is an arithmetic number, because the mean of its divisors is an integer number (2619729).

Almost surely, 223213030 is an apocalyptic number.

23213030 is a deficient number, since it is larger than the sum of its proper divisors (18702634).

23213030 is a wasteful number, since it uses less digits than its factorization.

23213030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7351.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 23213030 is about 4817.9902449050. The cubic root of 23213030 is about 285.2620140970.

Adding to 23213030 its reverse (3031232), we get a palindrome (26244262).

The spelling of 23213030 in words is "twenty-three million, two hundred thirteen thousand, thirty".

Divisors: 1 2 5 10 331 662 1655 3310 7013 14026 35065 70130 2321303 4642606 11606515 23213030