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8999930 = 255316981
BaseRepresentation
bin100010010101…
…001111111010
3121221020120202
4202111033322
54300444210
6520522202
7136332602
oct42251772
917836522
108999930
115097865
123020362
131b31604
1412a3c02
15bcb9a5
hex8953fa

8999930 has 16 divisors (see below), whose sum is σ = 16506504. Its totient is φ = 3531840.

The previous prime is 8999927. The next prime is 8999957. The reversal of 8999930 is 399998.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8994001 + 5929 = 2999^2 + 77^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7961 + ... + 9020.

Almost surely, 28999930 is an apocalyptic number.

8999930 is a deficient number, since it is larger than the sum of its proper divisors (7506574).

8999930 is a wasteful number, since it uses less digits than its factorization.

8999930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17041.

The product of its (nonzero) digits is 157464, while the sum is 47.

The square root of 8999930 is about 2999.9883333106. The cubic root of 8999930 is about 208.0078430228.

The spelling of 8999930 in words is "eight million, nine hundred ninety-nine thousand, nine hundred thirty".

Divisors: 1 2 5 10 53 106 265 530 16981 33962 84905 169810 899993 1799986 4499965 8999930