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20424030212 = 2279237727191
BaseRepresentation
bin10011000001010111…
…011111100000000100
31221201101102020100102
4103001113133200010
5313312022431322
613214353503232
71322061251405
oct230127374004
957641366312
1020424030212
118730918213
123b5bb71b18
131c064b0ba1
14dba7439ac
157e80c9792
hex4c15df804

20424030212 has 24 divisors (see below), whose sum is σ = 36211042560. Its totient is φ = 10078136640.

The previous prime is 20424030139. The next prime is 20424030217. The reversal of 20424030212 is 21203042402.

It is not an unprimeable number, because it can be changed into a prime (20424030217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737537 + ... + 764727.

It is an arithmetic number, because the mean of its divisors is an integer number (1508793440).

Almost surely, 220424030212 is an apocalyptic number.

It is an amenable number.

20424030212 is a deficient number, since it is larger than the sum of its proper divisors (15787012348).

20424030212 is a wasteful number, since it uses less digits than its factorization.

20424030212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29651 (or 29649 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20424030212 its reverse (21203042402), we get a palindrome (41627072614).

The spelling of 20424030212 in words is "twenty billion, four hundred twenty-four million, thirty thousand, two hundred twelve".

Divisors: 1 2 4 79 158 316 2377 4754 9508 27191 54382 108764 187783 375566 751132 2148089 4296178 8592356 64633007 129266014 258532028 5106007553 10212015106 20424030212