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9899998 = 25718669
BaseRepresentation
bin100101110000…
…111111011110
3200121222020121
4211300333132
510013244443
6552105154
7150101653
oct45607736
920558217
109899998
115652019
1233951ba
1320881b4
141459c2a
15d084ed
hex970fde

9899998 has 8 divisors (see below), whose sum is σ = 14877720. Its totient is φ = 4940760.

The previous prime is 9899993. The next prime is 9899999. The reversal of 9899998 is 8999989.

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 (9899993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3193 + ... + 5476.

It is an arithmetic number, because the mean of its divisors is an integer number (1859715).

Almost surely, 29899998 is an apocalyptic number.

9899998 is a deficient number, since it is larger than the sum of its proper divisors (4977722).

9899998 is a wasteful number, since it uses less digits than its factorization.

9899998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9242.

The product of its digits is 3779136, while the sum is 61.

The square root of 9899998 is about 3146.4262266896. The cubic root of 9899998 is about 214.7229024424.

Subtracting from 9899998 its reverse (8999989), we obtain a palindrome (900009).

The spelling of 9899998 in words is "nine million, eight hundred ninety-nine thousand, nine hundred ninety-eight".

Divisors: 1 2 571 1142 8669 17338 4949999 9899998