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20312212030300 = 2252641316883183
BaseRepresentation
bin1001001111001010011100…
…01011101100001101011100
32122220211100222110221122101
410213211032023230031130
510130243402234432200
6111111145033254444
74164336356342161
oct447451613541534
978824328427571
1020312212030300
1165213a7175463
122340786864424
13b44583184178
1450318b212068
152535796e926a
hex12794e2ec35c

20312212030300 has 36 divisors (see below), whose sum is σ = 44146263895776. Its totient is φ = 8112209459200.

The previous prime is 20312212030283. The next prime is 20312212030381. The reversal of 20312212030300 is 303021221302.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 158377492 + ... + 158505691.

It is an arithmetic number, because the mean of its divisors is an integer number (1226285108216).

Almost surely, 220312212030300 is an apocalyptic number.

20312212030300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20312212030300 is an abundant number, since it is smaller than the sum of its proper divisors (23834051865476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20312212030300 is a wasteful number, since it uses less digits than its factorization.

20312212030300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316883838 (or 316883831 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20312212030300 its reverse (303021221302), we get a palindrome (20615233251602).

The spelling of 20312212030300 in words is "twenty trillion, three hundred twelve billion, two hundred twelve million, thirty thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 641 1282 2564 3205 6410 12820 16025 32050 64100 316883183 633766366 1267532732 1584415915 3168831830 6337663660 7922079575 15844159150 31688318300 203122120303 406244240606 812488481212 1015610601515 2031221203030 4062442406060 5078053007575 10156106015150 20312212030300