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20032010032221 = 3211920321986693
BaseRepresentation
bin1001000111000000100001…
…10101111001010001011101
32121221001010012222121212200
410203200100311321101131
510111201024032012341
6110334324532122113
74135156611554655
oct443402065712135
977831105877780
1020032010032221
116423589480020
1222b6407766339
13b24019c265c5
144d37a9613365
1524b12a1a4db6
hex123810d7945d

20032010032221 has 24 divisors (see below), whose sum is σ = 31569022925856. Its totient is φ = 12139292387040.

The previous prime is 20032010032213. The next prime is 20032010032283. The reversal of 20032010032221 is 12223001023002.

20032010032221 is a `hidden beast` number, since 2 + 0 + 0 + 320 + 1 + 0 + 0 + 322 + 21 = 666.

It is not a de Polignac number, because 20032010032221 - 23 = 20032010032213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20032010032194 and 20032010032203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20032010032211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10082250 + ... + 11904443.

It is an arithmetic number, because the mean of its divisors is an integer number (1315375955244).

Almost surely, 220032010032221 is an apocalyptic number.

It is an amenable number.

20032010032221 is a deficient number, since it is larger than the sum of its proper divisors (11537012893635).

20032010032221 is a wasteful number, since it uses less digits than its factorization.

20032010032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21995913 (or 21995910 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20032010032221 its reverse (12223001023002), we get a palindrome (32255011055223).

The spelling of 20032010032221 in words is "twenty trillion, thirty-two billion, ten million, thirty-two thousand, two hundred twenty-one".

Divisors: 1 3 9 11 33 99 9203 27609 82827 101233 303699 911097 21986693 65960079 197880237 241853623 725560869 2176682607 202343535679 607030607037 1821091821111 2225778892469 6677336677407 20032010032221