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20754775276285 = 57095854661573
BaseRepresentation
bin1001011100000010110010…
…00000011111101011111101
32201111010200222022020121011
410232001121000133223331
510210021234432320120
6112050340115435221
74241324452016311
oct456013100375375
981433628266534
1020754775276285
116682061627506
1223b24b82b5b11
13b7722291975b
1451a772177b41
1525ed2cb49c5a
hex12e05901fafd

20754775276285 has 8 divisors (see below), whose sum is σ = 24940858305240. Its totient is φ = 16580401571904.

The previous prime is 20754775276241. The next prime is 20754775276343. The reversal of 20754775276285 is 58267257745702.

It can be written as a sum of positive squares in 4 ways, for example, as 1033306811289 + 19721468464996 = 1016517^2 + 4440886^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20754775276285 - 237 = 20617336322813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20754775276285.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2927327242 + ... + 2927334331.

It is an arithmetic number, because the mean of its divisors is an integer number (3117607288155).

Almost surely, 220754775276285 is an apocalyptic number.

It is an amenable number.

20754775276285 is a deficient number, since it is larger than the sum of its proper divisors (4186083028955).

20754775276285 is an equidigital number, since it uses as much as digits as its factorization.

20754775276285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5854662287.

The product of its (nonzero) digits is 460992000, while the sum is 67.

The spelling of 20754775276285 in words is "twenty trillion, seven hundred fifty-four billion, seven hundred seventy-five million, two hundred seventy-six thousand, two hundred eighty-five".

Divisors: 1 5 709 3545 5854661573 29273307865 4150955055257 20754775276285