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20123332 = 2229473691
BaseRepresentation
bin100110011000…
…0111011000100
31101212101000121
41030300323010
520122421312
61555151324
7333021415
oct114607304
941771017
1020123332
11103a4a59
1268a5544
1342275c8
14295b80c
151b77707
hex1330ec4

20123332 has 24 divisors (see below), whose sum is σ = 37215360. Its totient is φ = 9505440.

The previous prime is 20123293. The next prime is 20123339. The reversal of 20123332 is 23332102.

It is not an unprimeable number, because it can be changed into a prime (20123339) 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 7 ways as a sum of consecutive naturals, for example, 3607 + ... + 7297.

It is an arithmetic number, because the mean of its divisors is an integer number (1550640).

Almost surely, 220123332 is an apocalyptic number.

It is an amenable number.

20123332 is a deficient number, since it is larger than the sum of its proper divisors (17092028).

20123332 is a wasteful number, since it uses less digits than its factorization.

20123332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771 (or 3769 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 20123332 is about 4485.9036993676. The cubic root of 20123332 is about 271.9985762613.

Adding to 20123332 its reverse (23332102), we get a palindrome (43455434).

The spelling of 20123332 in words is "twenty million, one hundred twenty-three thousand, three hundred thirty-two".

Divisors: 1 2 4 29 47 58 94 116 188 1363 2726 3691 5452 7382 14764 107039 173477 214078 346954 428156 693908 5030833 10061666 20123332