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20560263230 = 25133727115773
BaseRepresentation
bin10011001001011111…
…001011100000111110
31222001212202120220202
4103021133023200332
5314101411410410
613240101443502
71325334232253
oct231137134076
958055676822
1020560263230
1187a0807091
123b99710592
131c2879c740
14dd088742a
15805039ca5
hex4c97cb83e

20560263230 has 64 divisors (see below), whose sum is σ = 41086096128. Its totient is φ = 7358584320.

The previous prime is 20560263211. The next prime is 20560263239. The reversal of 20560263230 is 3236206502.

It is a junction number, because it is equal to n+sod(n) for n = 20560263193 and 20560263202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20560263239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1295624 + ... + 1311396.

It is an arithmetic number, because the mean of its divisors is an integer number (641970252).

Almost surely, 220560263230 is an apocalyptic number.

20560263230 is a deficient number, since it is larger than the sum of its proper divisors (20525832898).

20560263230 is a wasteful number, since it uses less digits than its factorization.

20560263230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16101.

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 20560263230 its reverse (3236206502), we get a palindrome (23796469732).

The spelling of 20560263230 in words is "twenty billion, five hundred sixty million, two hundred sixty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 37 65 74 130 185 271 370 481 542 962 1355 2405 2710 3523 4810 7046 10027 15773 17615 20054 31546 35230 50135 78865 100270 130351 157730 205049 260702 410098 583601 651755 1025245 1167202 1303510 2050490 2918005 4274483 5836010 7586813 8548966 15173626 21372415 37934065 42744830 55568279 75868130 111136558 158155871 277841395 316311742 555682790 790779355 1581558710 2056026323 4112052646 10280131615 20560263230