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89308697321 = 197359452519
BaseRepresentation
bin101001100101100110…
…1101001001011101001
322112112002001220010102
41103023031221023221
52430401011303241
6105010003155145
76311103254564
oct1231315511351
9275462056112
1089308697321
113496a482168
1215385375ab5
13856383983c
1444731894db
1524ca82639b
hex14cb3692e9

89308697321 has 4 divisors (see below), whose sum is σ = 89309347200. Its totient is φ = 89308047444.

The previous prime is 89308697287. The next prime is 89308697339. The reversal of 89308697321 is 12379680398.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-89308697321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89308697341) 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, 28901 + ... + 423618.

It is an arithmetic number, because the mean of its divisors is an integer number (22327336800).

Almost surely, 289308697321 is an apocalyptic number.

It is an amenable number.

89308697321 is a deficient number, since it is larger than the sum of its proper divisors (649879).

89308697321 is a wasteful number, since it uses less digits than its factorization.

89308697321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649878.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 89308697321 in words is "eighty-nine billion, three hundred eight million, six hundred ninety-seven thousand, three hundred twenty-one".

Divisors: 1 197359 452519 89308697321