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20000010001012 = 225000002500253
BaseRepresentation
bin1001000110000100111010…
…11111011101101001110100
32121210222112002021121110121
410203002131133131221310
510110140010030013022
6110311513332301324
74132644615024226
oct443023537355164
977728462247417
1020000010001012
116410a58278a38
1222b0176a71844
13b20cba3a5bb2
144d2011702416
1524a3a5bae2c7
hex12309d7dda74

20000010001012 has 6 divisors (see below), whose sum is σ = 35000017501778. Its totient is φ = 10000005000504.

The previous prime is 20000010001009. The next prime is 20000010001019. The reversal of 20000010001012 is 21010001000002.

It can be written as a sum of positive squares in only one way, i.e., 19229751010276 + 770258990736 = 4385174^2 + 877644^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20000010000986 and 20000010001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000010001019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500001250123 + ... + 2500001250130.

Almost surely, 220000010001012 is an apocalyptic number.

It is an amenable number.

20000010001012 is a deficient number, since it is larger than the sum of its proper divisors (15000007500766).

20000010001012 is a wasteful number, since it uses less digits than its factorization.

20000010001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000002500257 (or 5000002500255 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20000010001012 its reverse (21010001000002), we get a palindrome (41010011001014).

The spelling of 20000010001012 in words is "twenty trillion, ten million, one thousand, twelve".

Divisors: 1 2 4 5000002500253 10000005000506 20000010001012