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20001210020210 = 252452781547723
BaseRepresentation
bin1001000110000111001010…
…00001001011000101110010
32121211002121201022220100002
410203003211001023011302
510110144434231121320
6110312232401030002
74133016426022406
oct443034501130562
977732551286302
1020001210020210
116411513698141
1222b0450925302
13b2114bba6023
144d20c6c39106
1524a426200675
hex1230e504b172

20001210020210 has 16 divisors (see below), whose sum is σ = 36003646336896. Its totient is φ = 8000157719088.

The previous prime is 20001210020201. The next prime is 20001210020227. The reversal of 20001210020210 is 1202001210002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20001210020191 and 20001210020200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40528592 + ... + 41019131.

It is an arithmetic number, because the mean of its divisors is an integer number (2250227896056).

Almost surely, 220001210020210 is an apocalyptic number.

20001210020210 is a deficient number, since it is larger than the sum of its proper divisors (16002436316686).

20001210020210 is a wasteful number, since it uses less digits than its factorization.

20001210020210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81572257.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20001210020210 its reverse (1202001210002), we get a palindrome (21203211230212).

The spelling of 20001210020210 in words is "twenty trillion, one billion, two hundred ten million, twenty thousand, two hundred ten".

Divisors: 1 2 5 10 24527 49054 122635 245270 81547723 163095446 407738615 815477230 2000121002021 4000242004042 10000605010105 20001210020210