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98143393 = 318130853
BaseRepresentation
bin1011101100110…
…00110010100001
320211200012102111
411312120302201
5200111042033
613423315321
72301130225
oct566306241
9224605374
1098143393
1150443647
1228a4bb41
131744371a
14d06a785
1589397cd
hex5d98ca1

98143393 has 4 divisors (see below), whose sum is σ = 98177428. Its totient is φ = 98109360.

The previous prime is 98143361. The next prime is 98143399. The reversal of 98143393 is 39334189.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39334189 = 106337003.

It can be written as a sum of positive squares in 2 ways, for example, as 8803089 + 89340304 = 2967^2 + 9452^2 .

It is a cyclic number.

It is not a de Polignac number, because 98143393 - 25 = 98143361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98143399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12246 + ... + 18607.

It is an arithmetic number, because the mean of its divisors is an integer number (24544357).

Almost surely, 298143393 is an apocalyptic number.

It is an amenable number.

98143393 is a deficient number, since it is larger than the sum of its proper divisors (34035).

98143393 is a wasteful number, since it uses less digits than its factorization.

98143393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34034.

The product of its digits is 69984, while the sum is 40.

The square root of 98143393 is about 9906.7347294656. The cubic root of 98143393 is about 461.2683850262.

The spelling of 98143393 in words is "ninety-eight million, one hundred forty-three thousand, three hundred ninety-three".

Divisors: 1 3181 30853 98143393