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20201211001300 = 22527137210648707
BaseRepresentation
bin1001001011111011101100…
…00000010111100111010100
32122112012212010110102122011
410211331312000113213110
510121434040004020200
6110544150324114004
74153326561223630
oct445756600274724
978465763412564
1020201211001300
116489315a6945a
122323168835904
13b36c73479914
144dba5b0d3dc0
1525072e7ba5ba
hex125f760179d4

20201211001300 has 72 divisors (see below), whose sum is σ = 50464689678144. Its totient is φ = 6875573763840.

The previous prime is 20201211001291. The next prime is 20201211001303. The reversal of 20201211001300 is 310011210202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201211001303) 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 23 ways as a sum of consecutive naturals, for example, 105228454 + ... + 105420253.

It is an arithmetic number, because the mean of its divisors is an integer number (700898467752).

Almost surely, 220201211001300 is an apocalyptic number.

20201211001300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201211001300 is an abundant number, since it is smaller than the sum of its proper divisors (30263478676844).

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

20201211001300 is a wasteful number, since it uses less digits than its factorization.

20201211001300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210648865 (or 210648858 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20201211001300 its reverse (310011210202), we get a palindrome (20511222211502).

The spelling of 20201211001300 in words is "twenty trillion, two hundred one billion, two hundred eleven million, one thousand, three hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 137 140 175 274 350 548 685 700 959 1370 1918 2740 3425 3836 4795 6850 9590 13700 19180 23975 47950 95900 210648707 421297414 842594828 1053243535 1474540949 2106487070 2949081898 4212974140 5266217675 5898163796 7372704745 10532435350 14745409490 21064870700 28858872859 29490818980 36863523725 57717745718 73727047450 115435491436 144294364295 147454094900 202012110013 288588728590 404024220026 577177457180 721471821475 808048440052 1010060550065 1442943642950 2020121100130 2885887285900 4040242200260 5050302750325 10100605500650 20201211001300