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98130791 = 118920981
BaseRepresentation
bin1011101100101…
…01101101100111
320211122120010202
411312111231213
5200110141131
613423141115
72301045413
oct566255547
9224576122
1098130791
1150435130
1228a4479b
131743aa75
14d065d43
158935bcb
hex5d95b67

98130791 has 4 divisors (see below), whose sum is σ = 107051784. Its totient is φ = 89209800.

The previous prime is 98130787. The next prime is 98130793. The reversal of 98130791 is 19703189.

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 98130791 - 22 = 98130787 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 (98130793) 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, 4460480 + ... + 4460501.

It is an arithmetic number, because the mean of its divisors is an integer number (26762946).

Almost surely, 298130791 is an apocalyptic number.

98130791 is a deficient number, since it is larger than the sum of its proper divisors (8920993).

98130791 is a wasteful number, since it uses less digits than its factorization.

98130791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8920992.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 98130791 is about 9906.0986770777. The cubic root of 98130791 is about 461.2486412858.

The spelling of 98130791 in words is "ninety-eight million, one hundred thirty thousand, seven hundred ninety-one".

Divisors: 1 11 8920981 98130791