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20000100100000 = 2555200001001
BaseRepresentation
bin1001000110000101000101…
…10111001010011110100000
32121210222202100211010001011
410203002202313022132200
510110140201111200000
6110311530311350304
74132650060611416
oct443024267123640
977728670733034
1020000100100000
116410aa4117709
1222b01a1082394
13b21002c60bc7
144d201d6772b6
1524a3ada5a2ba
hex1230a2dca7a0

20000100100000 has 72 divisors (see below), whose sum is σ = 49215846570156. Its totient is φ = 8000040000000.

The previous prime is 20000100099983. The next prime is 20000100100003. The reversal of 20000100100000 is 100100002.

It can be written as a sum of positive squares in 6 ways, for example, as 1908586458256 + 18091513641744 = 1381516^2 + 4253412^2 .

It is a Harshad number since it is a multiple of its sum of digits (4).

It is not an unprimeable number, because it can be changed into a prime (20000100100003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99900501 + ... + 100100500.

Almost surely, 220000100100000 is an apocalyptic number.

20000100100000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000100100000 is an abundant number, since it is smaller than the sum of its proper divisors (29215746470156).

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

20000100100000 is an frugal number, since it uses more digits than its factorization.

20000100100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200001036 (or 200001008 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 4.

Adding to 20000100100000 its reverse (100100002), we get a palindrome (20000200200002).

The spelling of 20000100100000 in words is "twenty trillion, one hundred million, one hundred thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 625 800 1000 1250 2000 2500 3125 4000 5000 6250 10000 12500 20000 25000 50000 100000 200001001 400002002 800004004 1000005005 1600008008 2000010010 3200016016 4000020020 5000025025 6400032032 8000040040 10000050050 16000080080 20000100100 25000125125 32000160160 40000200200 50000250250 80000400400 100000500500 125000625625 160000800800 200001001000 250001251250 400002002000 500002502500 625003128125 800004004000 1000005005000 1250006256250 2000010010000 2500012512500 4000020020000 5000025025000 10000050050000 20000100100000