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79420798 = 2192090021
BaseRepresentation
bin1001011101111…
…01110101111110
312112102222212001
410232331311332
5130312431143
611514132514
71653031342
oct456756576
9175388761
1079420798
1140916026
122272113a
13135b9872
14a795622
156e8c14d
hex4bbdd7e

79420798 has 8 divisors (see below), whose sum is σ = 125401320. Its totient is φ = 37620360.

The previous prime is 79420793. The next prime is 79420843. The reversal of 79420798 is 89702497.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79420793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1044973 + ... + 1045048.

It is an arithmetic number, because the mean of its divisors is an integer number (15675165).

Almost surely, 279420798 is an apocalyptic number.

79420798 is a deficient number, since it is larger than the sum of its proper divisors (45980522).

79420798 is a wasteful number, since it uses less digits than its factorization.

79420798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090042.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 79420798 is about 8911.8347157025. The cubic root of 79420798 is about 429.8445408827.

The spelling of 79420798 in words is "seventy-nine million, four hundred twenty thousand, seven hundred ninety-eight".

Divisors: 1 2 19 38 2090021 4180042 39710399 79420798