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89305928479 = 4391571129491
BaseRepresentation
bin101001100101100001…
…1000101001100011111
322112111212212012222201
41103023003011030133
52430344304202404
6105005423552331
76311040603265
oct1231303051437
9275455765881
1089305928479
1134968960969
121538445b6a7
1385630aa481
144472a68435
1524ca47aca4
hex14cb0c531f

89305928479 has 8 divisors (see below), whose sum is σ = 89567026560. Its totient is φ = 89045093400.

The previous prime is 89305928471. The next prime is 89305928483. The reversal of 89305928479 is 97482950398.

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 89305928479 - 23 = 89305928471 is a prime.

It is a super-2 number, since 2×893059284792 (a number of 23 digits) contains 22 as substring.

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 89305928479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89305928471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624924 + ... + 754414.

It is an arithmetic number, because the mean of its divisors is an integer number (11195878320).

Almost surely, 289305928479 is an apocalyptic number.

89305928479 is a deficient number, since it is larger than the sum of its proper divisors (261098081).

89305928479 is a wasteful number, since it uses less digits than its factorization.

89305928479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131501.

The product of its (nonzero) digits is 39191040, while the sum is 64.

The spelling of 89305928479 in words is "eighty-nine billion, three hundred five million, nine hundred twenty-eight thousand, four hundred seventy-nine".

Divisors: 1 439 1571 129491 689669 56846549 203430361 89305928479