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89152818481 = 101987490499
BaseRepresentation
bin101001100000111101…
…1000000110100110001
322112010012202102120001
41103001323000310301
52430041110142411
6104542314150001
76304201311406
oct1230173006461
9275105672501
1089152818481
113489a495081
1215341122301
13853a45cb3c
14445a5b02ad
1524bbcd4dc1
hex14c1ec0d31

89152818481 has 4 divisors (see below), whose sum is σ = 89240310000. Its totient is φ = 89065326964.

The previous prime is 89152818413. The next prime is 89152818493. The reversal of 89152818481 is 18481825198.

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 89152818481 - 27 = 89152818353 is a prime.

It is a super-2 number, since 2×891528184812 (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 (89152818401) 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, 43744231 + ... + 43746268.

It is an arithmetic number, because the mean of its divisors is an integer number (22310077500).

Almost surely, 289152818481 is an apocalyptic number.

It is an amenable number.

89152818481 is a deficient number, since it is larger than the sum of its proper divisors (87491519).

89152818481 is a wasteful number, since it uses less digits than its factorization.

89152818481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87491518.

The product of its digits is 1474560, while the sum is 55.

The spelling of 89152818481 in words is "eighty-nine billion, one hundred fifty-two million, eight hundred eighteen thousand, four hundred eighty-one".

Divisors: 1 1019 87490499 89152818481