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BaseRepresentation
bin1011111010110…
…11010110010110
320222010221222002
411331123112112
5201044121021
613531035302
72322614534
oct575332626
9228127862
1099988886
1151494148
122959bb32
131793b72a
14d3cb154
158ba150b
hex5f5b596

99988886 has 4 divisors (see below), whose sum is σ = 149983332. Its totient is φ = 49994442.

The previous prime is 99988879. The next prime is 99988913. The reversal of 99988886 is 68888999.

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

It is a Curzon number.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 24997220 + ... + 24997223.

It is an arithmetic number, because the mean of its divisors is an integer number (37495833).

Almost surely, 299988886 is an apocalyptic number.

99988886 is a deficient number, since it is larger than the sum of its proper divisors (49994446).

99988886 is a wasteful number, since it uses less digits than its factorization.

99988886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49994445.

The product of its digits is 17915904, while the sum is 65.

The square root of 99988886 is about 9999.4442845590. Note that the first 3 decimals coincide. The cubic root of 99988886 is about 464.1416871848.

The spelling of 99988886 in words is "ninety-nine million, nine hundred eighty-eight thousand, eight hundred eighty-six".

Divisors: 1 2 49994443 99988886