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212012143210 = 257231496911279
BaseRepresentation
bin1100010101110011101…
…0001001001001101010
3202021020111020210012101
43011130322021021222
511433200102040320
6241221432004014
721213600324460
oct3053472111152
9667214223171
10212012143210
1181a0636718a
123510a53060a
1316cb9b45c1a
14a393580830
1557acce2c0a
hex315ce8926a

212012143210 has 128 divisors (see below), whose sum is σ = 459177984000. Its totient is φ = 68908942080.

The previous prime is 212012143181. The next prime is 212012143223. The reversal of 212012143210 is 12341210212.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 165763351 + ... + 165764629.

It is an arithmetic number, because the mean of its divisors is an integer number (3587328000).

Almost surely, 2212012143210 is an apocalyptic number.

212012143210 is an abundant number, since it is smaller than the sum of its proper divisors (247165840790).

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

212012143210 is a wasteful number, since it uses less digits than its factorization.

212012143210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 212012143210 its reverse (12341210212), we get a palindrome (224353353422).

The spelling of 212012143210 in words is "two hundred twelve billion, twelve million, one hundred forty-three thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 23 35 46 70 115 149 161 230 298 322 691 745 805 1043 1279 1382 1490 1610 2086 2558 3427 3455 4837 5215 6395 6854 6910 8953 9674 10430 12790 15893 17135 17906 23989 24185 29417 31786 34270 44765 47978 48370 58834 79465 89530 102959 111251 119945 147085 158930 190571 205918 205919 222502 239890 294170 381142 411838 514795 556255 720713 883789 952855 1029590 1029595 1112510 1333997 1441426 1767578 1905710 2059190 2368057 2667994 3603565 4383133 4418945 4736114 6186523 6669985 7207130 8766266 8837890 11840285 12373046 13339970 16576399 20327147 21915665 23680570 30681931 30932615 33152798 40654294 43831330 61363862 61865230 82881995 101635735 131684561 142290029 153409655 165763990 203271470 263369122 284580058 306819310 658422805 711450145 921791927 1316845610 1422900290 1843583854 3028744903 4608959635 6057489806 9217919270 15143724515 21201214321 30287449030 42402428642 106006071605 212012143210