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84268488481 = 101598294959
BaseRepresentation
bin100111001111011001…
…0110001011100100001
322001111211000202101221
41032132302301130201
52340040213112411
6102413514055041
76042152222302
oct1163662613441
9261454022357
1084268488481
1132813401711
12143b941a481
137c3c570348
144115a1c7a9
1522d30cb071
hex139ecb1721

84268488481 has 4 divisors (see below), whose sum is σ = 84276793600. Its totient is φ = 84260183364.

The previous prime is 84268488439. The next prime is 84268488497. The reversal of 84268488481 is 18488486248.

It is a happy number.

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 84268488481 - 217 = 84268357409 is a prime.

It is a super-2 number, since 2×842684884812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84268438481) 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, 4137321 + ... + 4157638.

It is an arithmetic number, because the mean of its divisors is an integer number (21069198400).

Almost surely, 284268488481 is an apocalyptic number.

It is an amenable number.

84268488481 is a deficient number, since it is larger than the sum of its proper divisors (8305119).

84268488481 is a wasteful number, since it uses less digits than its factorization.

84268488481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8305118.

The product of its digits is 25165824, while the sum is 61.

The spelling of 84268488481 in words is "eighty-four billion, two hundred sixty-eight million, four hundred eighty-eight thousand, four hundred eighty-one".

Divisors: 1 10159 8294959 84268488481