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12642134050 = 2527138931219
BaseRepresentation
bin10111100011000011…
…11010100000100010
31012122001101221200001
423301201322200202
5201342341242200
65450244450214
7625166236450
oct136141724042
935561357601
1012642134050
1153a8178477
1225499a996a
1312661c33c0
1487d0119d0
154ded1276a
hex2f187a822

12642134050 has 96 divisors (see below), whose sum is σ = 29266876800. Its totient is φ = 3955944960.

The previous prime is 12642134017. The next prime is 12642134051. The reversal of 12642134050 is 5043124621.

It is not an unprimeable number, because it can be changed into a prime (12642134051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 389341 + ... + 420559.

It is an arithmetic number, because the mean of its divisors is an integer number (304863300).

Almost surely, 212642134050 is an apocalyptic number.

12642134050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12642134050 is an abundant number, since it is smaller than the sum of its proper divisors (16624742750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12642134050 is a wasteful number, since it uses less digits than its factorization.

12642134050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31340 (or 31335 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 12642134050 its reverse (5043124621), we get a palindrome (17685258671).

The spelling of 12642134050 in words is "twelve billion, six hundred forty-two million, one hundred thirty-four thousand, fifty".

Divisors: 1 2 5 7 10 13 14 25 26 35 50 65 70 89 91 130 175 178 182 325 350 445 455 623 650 890 910 1157 1246 2225 2275 2314 3115 4450 4550 5785 6230 8099 11570 15575 16198 28925 31150 31219 40495 57850 62438 80990 156095 202475 218533 312190 404950 405847 437066 780475 811694 1092665 1560950 2029235 2185330 2778491 2840929 4058470 5463325 5556982 5681858 10146175 10926650 13892455 14204645 19449437 20292350 27784910 28409290 36120383 38898874 69462275 71023225 72240766 97247185 138924550 142046450 180601915 194494370 252842681 361203830 486235925 505685362 903009575 972471850 1264213405 1806019150 2528426810 6321067025 12642134050