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79888 = 244993
BaseRepresentation
bin10011100000010000
311001120211
4103200100
510024023
61413504
7451624
oct234020
9131524
1079888
1155026
123a294
132a493
1421184
1518a0d
hex13810

79888 has 10 divisors (see below), whose sum is σ = 154814. Its totient is φ = 39936.

The previous prime is 79873. The next prime is 79889. The reversal of 79888 is 88897.

It can be written as a sum of positive squares in only one way, i.e., 63504 + 16384 = 252^2 + 128^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 79888.

It is not an unprimeable number, because it can be changed into a prime (79889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2481 + ... + 2512.

279888 is an apocalyptic number.

It is an amenable number.

79888 is a deficient number, since it is larger than the sum of its proper divisors (74926).

79888 is a wasteful number, since it uses less digits than its factorization.

79888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001 (or 4995 counting only the distinct ones).

The product of its digits is 32256, while the sum is 40.

The square root of 79888 is about 282.6446532309. The cubic root of 79888 is about 43.0685763525.

Subtracting 79888 from its reverse (88897), we obtain a palindrome (9009).

The spelling of 79888 in words is "seventy-nine thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 16 4993 9986 19972 39944 79888