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20756446630001 = 27022376812287
BaseRepresentation
bin1001011100000101111001…
…01000001101000001110001
32201111022000110020210212122
410232002330220031001301
510210033200314130001
6112051214022404025
74241414045211545
oct456027450150161
981438013223778
1020756446630001
11668283a004275
1223b28a3b90615
13b7742ac76254
1451a890123a25
1525edc9740b1b
hex12e0bca0d071

20756446630001 has 4 divisors (see below), whose sum is σ = 20756523712512. Its totient is φ = 20756369547492.

The previous prime is 20756446629959. The next prime is 20756446630019. The reversal of 20756446630001 is 10003664465702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20756446630001 - 26 = 20756446629937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20756446630201) 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 3 ways as a sum of consecutive naturals, for example, 38135921 + ... + 38676366.

It is an arithmetic number, because the mean of its divisors is an integer number (5189130928128).

Almost surely, 220756446630001 is an apocalyptic number.

It is an amenable number.

20756446630001 is a deficient number, since it is larger than the sum of its proper divisors (77082511).

20756446630001 is an equidigital number, since it uses as much as digits as its factorization.

20756446630001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77082510.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 20756446630001 in words is "twenty trillion, seven hundred fifty-six billion, four hundred forty-six million, six hundred thirty thousand, one".

Divisors: 1 270223 76812287 20756446630001