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20201201013100 = 2252463953457829
BaseRepresentation
bin1001001011111011101010…
…11010010001000101101100
32122112012211102122222101211
410211331311122101011230
510121434024424404400
6110544145330044204
74153326410303542
oct445756532210554
978465742588354
1020201201013100
116489310367148
122323165419664
13b36c71390543
144dba59a53d92
1525072d995dba
hex125f7569116c

20201201013100 has 72 divisors (see below), whose sum is σ = 43977479636160. Its totient is φ = 8054549690880.

The previous prime is 20201201013067. The next prime is 20201201013131. The reversal of 20201201013100 is 131010210202.

It is a super-2 number, since 2×202012010131002 (a number of 27 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 43894986 + ... + 44352814.

It is an arithmetic number, because the mean of its divisors is an integer number (610798328280).

Almost surely, 220201201013100 is an apocalyptic number.

20201201013100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201201013100 is an abundant number, since it is smaller than the sum of its proper divisors (23776278623060).

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

20201201013100 is a wasteful number, since it uses less digits than its factorization.

20201201013100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459259 (or 459252 counting only the distinct ones).

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

Adding to 20201201013100 its reverse (131010210202), we get a palindrome (20332211223302).

The spelling of 20201201013100 in words is "twenty trillion, two hundred one billion, two hundred one million, thirteen thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 463 926 953 1852 1906 2315 3812 4630 4765 9260 9530 11575 19060 23150 23825 46300 47650 95300 441239 457829 882478 915658 1764956 1831316 2206195 2289145 4412390 4578290 8824780 9156580 11030975 11445725 22061950 22891450 44123900 45782900 211974827 423949654 436311037 847899308 872622074 1059874135 1745244148 2119748270 2181555185 4239496540 4363110370 5299370675 8726220740 10598741350 10907775925 21197482700 21815551850 43631103700 202012010131 404024020262 808048040524 1010060050655 2020120101310 4040240202620 5050300253275 10100600506550 20201201013100