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8985021 = 318116547
BaseRepresentation
bin100010010001…
…100110111101
3121220111010120
4202101212331
54300010041
6520325153
7136241253
oct42214675
917814116
108985021
115087641
1230137b9
131b278a6
14129c5d3
15bc7366
hex8919bd

8985021 has 8 divisors (see below), whose sum is σ = 12046944. Its totient is φ = 5956560.

The previous prime is 8985017. The next prime is 8985023. The reversal of 8985021 is 1205898.

It is a happy number.

8985021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8985021 - 22 = 8985017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8985023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7731 + ... + 8816.

It is an arithmetic number, because the mean of its divisors is an integer number (1505868).

Almost surely, 28985021 is an apocalyptic number.

It is an amenable number.

8985021 is a deficient number, since it is larger than the sum of its proper divisors (3061923).

8985021 is a wasteful number, since it uses less digits than its factorization.

8985021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16731.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 8985021 is about 2997.5024603826. The cubic root of 8985021 is about 207.8929197974.

The spelling of 8985021 in words is "eight million, nine hundred eighty-five thousand, twenty-one".

Divisors: 1 3 181 543 16547 49641 2995007 8985021