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20000010100000 = 25557179159617
BaseRepresentation
bin1001000110000100111010…
…11111110101110100100000
32121210222112002110122020211
410203002131133311310200
510110140010041200000
6110311513334343504
74132644615615640
oct443023537656440
977728462418224
1020000010100000
116410a58336347
1222b0176abab94
13b20cba40bc78
144d201172a520
1524a3a5bcd7ba
hex12309d7f5d20

20000010100000 has 288 divisors, whose sum is σ = 56561008613760. Its totient is φ = 6818795520000.

The previous prime is 20000010099997. The next prime is 20000010100003. The reversal of 20000010100000 is 101000002.

It is an interprime number because it is at equal distance from previous prime (20000010099997) and next prime (20000010100003).

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

20000010100000 is a modest number, since divided by 10100000 gives 200000 as remainder.

It is not an unprimeable number, because it can be changed into a prime (20000010100003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 125220192 + ... + 125379808.

It is an arithmetic number, because the mean of its divisors is an integer number (196392391020).

Almost surely, 220000010100000 is an apocalyptic number.

20000010100000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20000010100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28280504306880).

20000010100000 is an abundant number, since it is smaller than the sum of its proper divisors (36560998513760).

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

20000010100000 is an equidigital number, since it uses as much as digits as its factorization.

20000010100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159838 (or 159810 counting only the distinct ones).

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

Adding to 20000010100000 its reverse (101000002), we get a palindrome (20000111100002).

The spelling of 20000010100000 in words is "twenty trillion, ten million, one hundred thousand".