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20331203112212 = 2283251421579521
BaseRepresentation
bin1001001111101101110100…
…01000111010110100010100
32122222122101111112212110112
410213312322020322310110
510131101300444042322
6111124005322142152
74165611111023006
oct447667210726424
978878344485415
1020331203112212
11652946213a383
1223443a6951958
13b462bb81b645
1450406d508376
15253cdbac15e2
hex127dba23ad14

20331203112212 has 48 divisors (see below), whose sum is σ = 36237668289984. Its totient is φ = 9979334400000.

The previous prime is 20331203112211. The next prime is 20331203112257. The reversal of 20331203112212 is 21221130213302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331203112211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34793012 + ... + 35372532.

It is an arithmetic number, because the mean of its divisors is an integer number (754951422708).

Almost surely, 220331203112212 is an apocalyptic number.

It is an amenable number.

20331203112212 is a deficient number, since it is larger than the sum of its proper divisors (15906465177772).

20331203112212 is a wasteful number, since it uses less digits than its factorization.

20331203112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580280 (or 580278 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20331203112212 its reverse (21221130213302), we get a palindrome (41552333325514).

The spelling of 20331203112212 in words is "twenty trillion, three hundred thirty-one billion, two hundred three million, one hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 83 166 251 332 421 502 842 1004 1684 20833 34943 41666 69886 83332 105671 139772 211342 422684 579521 1159042 2318084 8770693 17541386 35082772 48100243 96200486 145459771 192400972 243978341 290919542 487956682 581839084 975913364 12073160993 20250202303 24146321986 40500404606 48292643972 61238563591 81000809212 122477127182 244954254364 5082800778053 10165601556106 20331203112212