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212031212301 = 33173181145219
BaseRepresentation
bin1100010101111000001…
…0111000101100001101
3202021021211010121002000
43011132002320230031
511433214442243201
6241223352422513
721214221365466
oct3053602705415
9667254117060
10212031212301
1181a16101067
12351149a7a39
1316cc0a916cc
14a395d05d6d
1557ae80cd86
hex315e0b8b0d

212031212301 has 32 divisors (see below), whose sum is σ = 332704828800. Its totient is φ = 132996453120.

The previous prime is 212031212287. The next prime is 212031212347. The reversal of 212031212301 is 103212130212.

212031212301 is a `hidden beast` number, since 2 + 120 + 31 + 212 + 301 = 666.

It is not a de Polignac number, because 212031212301 - 219 = 212030688013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212031212401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1387470 + ... + 1532688.

It is an arithmetic number, because the mean of its divisors is an integer number (10397025900).

Almost surely, 2212031212301 is an apocalyptic number.

It is an amenable number.

212031212301 is a deficient number, since it is larger than the sum of its proper divisors (120673616499).

212031212301 is a wasteful number, since it uses less digits than its factorization.

212031212301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148426 (or 148420 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212031212301 its reverse (103212130212), we get a palindrome (315243342513).

The spelling of 212031212301 in words is "two hundred twelve billion, thirty-one million, two hundred twelve thousand, three hundred one".

Divisors: 1 3 9 17 27 51 153 459 3181 9543 28629 54077 85887 145219 162231 435657 486693 1306971 1460079 2468723 3920913 7406169 22218507 66655521 461941639 1385824917 4157474751 7853007863 12472424253 23559023589 70677070767 212031212301