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98102071 = 109900019
BaseRepresentation
bin1011101100011…
…10101100110111
320211121002202001
411312032230313
5200103231241
613422400131
72300565604
oct566165467
9224532661
1098102071
11504155a1
1228a30047
131742a982
14d0596ab
15892c431
hex5d8eb37

98102071 has 4 divisors (see below), whose sum is σ = 99002200. Its totient is φ = 97201944.

The previous prime is 98102057. The next prime is 98102089. The reversal of 98102071 is 17020189.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 98102071 - 27 = 98101943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98102021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449901 + ... + 450118.

It is an arithmetic number, because the mean of its divisors is an integer number (24750550).

Almost surely, 298102071 is an apocalyptic number.

98102071 is a deficient number, since it is larger than the sum of its proper divisors (900129).

98102071 is a wasteful number, since it uses less digits than its factorization.

98102071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900128.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 98102071 is about 9904.6489589485. The cubic root of 98102071 is about 461.2036389191.

It can be divided in two parts, 9810 and 2071, that added together give a square (11881 = 1092).

The spelling of 98102071 in words is "ninety-eight million, one hundred two thousand, seventy-one".

Divisors: 1 109 900019 98102071