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20424323030 = 2519314497723
BaseRepresentation
bin10011000001011000…
…100110111111010110
31221201101222010000112
4103001120212333112
5313312111314110
613214404043022
71322063611166
oct230130467726
957641863015
1020424323030
118730aa8211
123b60093472
131c06584257
14dba7bc5a6
157e8136405
hex4c1626fd6

20424323030 has 64 divisors (see below), whose sum is σ = 40041216000. Its totient is φ = 7472424960.

The previous prime is 20424323027. The next prime is 20424323057. The reversal of 20424323030 is 3032342402.

It is a junction number, because it is equal to n+sod(n) for n = 20424322987 and 20424323005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2640749 + ... + 2648471.

It is an arithmetic number, because the mean of its divisors is an integer number (625644000).

Almost surely, 220424323030 is an apocalyptic number.

20424323030 is a deficient number, since it is larger than the sum of its proper divisors (19616892970).

20424323030 is a wasteful number, since it uses less digits than its factorization.

20424323030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8229.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 20424323030 its reverse (3032342402), we get a palindrome (23456665432).

The spelling of 20424323030 in words is "twenty billion, four hundred twenty-four million, three hundred twenty-three thousand, thirty".

Divisors: 1 2 5 10 19 31 38 62 95 155 190 310 449 589 898 1178 2245 2945 4490 5890 7723 8531 13919 15446 17062 27838 38615 42655 69595 77230 85310 139190 146737 239413 264461 293474 478826 528922 733685 1197065 1322305 1467370 2394130 2644610 3467627 4548847 6935254 9097694 17338135 22744235 34676270 45488470 65884913 107496437 131769826 214992874 329424565 537482185 658849130 1074964370 2042432303 4084864606 10212161515 20424323030