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210131320412 = 2213371071020709
BaseRepresentation
bin1100001110110011001…
…1010111111001011100
3202002101102011002100202
43003230303113321130
511420322104223122
6240311043243032
721116151516206
oct3035463277134
9662342132322
10210131320412
118113071a182
1234884679478
1316a7a298120
14a255869776
1556ecb21e92
hex30eccd7e5c

210131320412 has 48 divisors (see below), whose sum is σ = 410521396320. Its totient is φ = 93480521472.

The previous prime is 210131320409. The next prime is 210131320433. The reversal of 210131320412 is 214023131012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304487 + ... + 716222.

It is an arithmetic number, because the mean of its divisors is an integer number (8552529090).

Almost surely, 2210131320412 is an apocalyptic number.

It is an amenable number.

210131320412 is a deficient number, since it is larger than the sum of its proper divisors (200390075908).

210131320412 is a wasteful number, since it uses less digits than its factorization.

210131320412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020870 (or 1020868 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 210131320412 its reverse (214023131012), we get a palindrome (424154451424).

The spelling of 210131320412 in words is "two hundred ten billion, one hundred thirty-one million, three hundred twenty thousand, four hundred twelve".

Divisors: 1 2 4 13 26 37 52 74 107 148 214 428 481 962 1391 1924 2782 3959 5564 7918 15836 51467 102934 205868 1020709 2041418 4082836 13269217 26538434 37766233 53076868 75532466 109215863 151064932 218431726 436863452 490961029 981922058 1419806219 1963844116 2839612438 4040986931 5679224876 8081973862 16163947724 52532830103 105065660206 210131320412