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20874125330041 = 45688212
BaseRepresentation
bin1001011111100001000101…
…10100110100011001111001
32201220112202200111011110111
410233300202310310121321
510214000202041030131
6112221235113344321
74253051166520564
oct457604264643171
981815680434414
1020874125330041
11671873761a375
1224116664080a1
13b8556326b439
145224550554db
15262eb5a18ab1
hex12fc22d34679

20874125330041 has 3 divisors (see below), whose sum is σ = 20874129898863. Its totient is φ = 20874120761220.

The previous prime is 20874125330033. The next prime is 20874125330063. The reversal of 20874125330041 is 14003352147802.

The square root of 20874125330041 is 4568821.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1291907297641 + 19582218032400 = 1136621^2 + 4425180^2 .

It is not a de Polignac number, because 20874125330041 - 23 = 20874125330033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20874125329976 and 20874125330003.

It is not an unprimeable number, because it can be changed into a prime (20874125330081) 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 2 ways as a sum of consecutive naturals, for example, 2284411 + ... + 6853231.

It is an arithmetic number, because the mean of its divisors is an integer number (6958043299621).

Almost surely, 220874125330041 is an apocalyptic number.

20874125330041 is the 4568821-st square number.

20874125330041 is the 2284411-st centered octagonal number.

It is an amenable number.

20874125330041 is a deficient number, since it is larger than the sum of its proper divisors (4568822).

20874125330041 is an frugal number, since it uses more digits than its factorization.

20874125330041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9137642 (or 4568821 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

Adding to 20874125330041 its reverse (14003352147802), we get a palindrome (34877477477843).

The spelling of 20874125330041 in words is "twenty trillion, eight hundred seventy-four billion, one hundred twenty-five million, three hundred thirty thousand, forty-one".

Divisors: 1 4568821 20874125330041