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84710256793 = 391572163349
BaseRepresentation
bin100111011100100011…
…1111111000010011001
322002122121021220121021
41032321013333002121
52341441311204133
6102525414442441
76056125205461
oct1167107770231
9262577256537
1084710256793
1132a1a805798
1214501363421
137cacc47306
144158576ba1
15230bc9052d
hex13b91ff099

84710256793 has 4 divisors (see below), whose sum is σ = 84712459300. Its totient is φ = 84708054288.

The previous prime is 84710256769. The next prime is 84710256853. The reversal of 84710256793 is 39765201748.

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

It can be written as a sum of positive squares in 2 ways, for example, as 30321953424 + 54388303369 = 174132^2 + 233213^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-84710256793 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 84710256793.

It is not an unprimeable number, because it can be changed into a prime (84710256593) 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, 1042518 + ... + 1120831.

It is an arithmetic number, because the mean of its divisors is an integer number (21178114825).

It is a 1-persistent number, because it is pandigital, but 2⋅84710256793 = 169420513586 is not.

Almost surely, 284710256793 is an apocalyptic number.

It is an amenable number.

84710256793 is a deficient number, since it is larger than the sum of its proper divisors (2202507).

84710256793 is a wasteful number, since it uses less digits than its factorization.

84710256793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202506.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 84710256793 in words is "eighty-four billion, seven hundred ten million, two hundred fifty-six thousand, seven hundred ninety-three".

Divisors: 1 39157 2163349 84710256793