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8997998 = 217318537
BaseRepresentation
bin100010010100…
…110001101110
3121221010221012
4202110301232
54300413443
6520505222
7136324142
oct42246156
917833835
108997998
115096369
12301b212
131b30779
1412a3222
15bcb118
hex894c6e

8997998 has 16 divisors (see below), whose sum is σ = 14753664. Its totient is φ = 4097280.

The previous prime is 8997979. The next prime is 8998061.

8997998 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3215 + ... + 5322.

It is an arithmetic number, because the mean of its divisors is an integer number (922104).

Almost surely, 28997998 is an apocalyptic number.

8997998 is a deficient number, since it is larger than the sum of its proper divisors (5755666).

8997998 is a wasteful number, since it uses less digits than its factorization.

8997998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8587.

The product of its digits is 2939328, while the sum is 59.

The square root of 8997998 is about 2999.6663147757. Note that the first 3 decimals coincide. The cubic root of 8997998 is about 207.9929577251.

The spelling of 8997998 in words is "eight million, nine hundred ninety-seven thousand, nine hundred ninety-eight".

Divisors: 1 2 17 31 34 62 527 1054 8537 17074 145129 264647 290258 529294 4498999 8997998