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87044348761 = 244749337211
BaseRepresentation
bin101000100010000111…
…1110101101101011001
322022200021022001211221
41101010033311231121
52411231323130021
6103553154252041
76201016520356
oct1210417655531
9268607261757
1087044348761
1133a082a1617
1214a52b87021
138292697b16
1442da55b62d
1523e6b48241
hex14443f5b59

87044348761 has 8 divisors (see below), whose sum is σ = 87109651584. Its totient is φ = 86979075120.

The previous prime is 87044348749. The next prime is 87044348887. The reversal of 87044348761 is 16784344078.

It is a happy number.

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 87044348761 - 29 = 87044348249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87044348699 and 87044348708.

It is not an unprimeable number, because it can be changed into a prime (87044348701) 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 7 ways as a sum of consecutive naturals, for example, 12067446 + ... + 12074656.

It is an arithmetic number, because the mean of its divisors is an integer number (10888706448).

Almost surely, 287044348761 is an apocalyptic number.

It is an amenable number.

87044348761 is a deficient number, since it is larger than the sum of its proper divisors (65302823).

87044348761 is a wasteful number, since it uses less digits than its factorization.

87044348761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14591.

The product of its (nonzero) digits is 3612672, while the sum is 52.

The spelling of 87044348761 in words is "eighty-seven billion, forty-four million, three hundred forty-eight thousand, seven hundred sixty-one".

Divisors: 1 2447 4933 7211 12071051 17645317 35571863 87044348761