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68974747044383 = 87403789157661
BaseRepresentation
bin11111010111011011011110…
…10010111100101000011111
3100001012220212201022021122002
433223231233102330220133
533020040240220410013
6402410321130312515
720346155350220465
oct1753555722745037
9301186781267562
1068974747044383
111aa830315a1984
12789b92728873b
132c643a1998b9b
14130657762a835
157e92d1292358
hex3ebb6f4bca1f

68974747044383 has 4 divisors (see below), whose sum is σ = 68975536289448. Its totient is φ = 68973957799320.

The previous prime is 68974747044377. The next prime is 68974747044403. The reversal of 68974747044383 is 38344074747986.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68974747044383 - 26 = 68974747044319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68974747044383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68974747044353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394491428 + ... + 394666233.

It is an arithmetic number, because the mean of its divisors is an integer number (17243884072362).

Almost surely, 268974747044383 is an apocalyptic number.

68974747044383 is a deficient number, since it is larger than the sum of its proper divisors (789245065).

68974747044383 is an equidigital number, since it uses as much as digits as its factorization.

68974747044383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789245064.

The product of its (nonzero) digits is 2731180032, while the sum is 74.

The spelling of 68974747044383 in words is "sixty-eight trillion, nine hundred seventy-four billion, seven hundred forty-seven million, forty-four thousand, three hundred eighty-three".

Divisors: 1 87403 789157661 68974747044383