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8994981 = 314920123
BaseRepresentation
bin100010010100…
…000010100101
3121220222210110
4202110002211
54300314411
6520443233
7136312302
oct42240245
917828713
108994981
115094076
123019519
131b2c298
1412a20a9
15bca2a6
hex8940a5

8994981 has 8 divisors (see below), whose sum is σ = 12074400. Its totient is φ = 5956112.

The previous prime is 8994943. The next prime is 8995003. The reversal of 8994981 is 1894998.

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

It is a cyclic number.

It is not a de Polignac number, because 8994981 - 217 = 8863909 is a prime.

It is a super-2 number, since 2×89949812 = 161819366380722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8994981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8994911) 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, 9615 + ... + 10508.

It is an arithmetic number, because the mean of its divisors is an integer number (1509300).

Almost surely, 28994981 is an apocalyptic number.

It is an amenable number.

8994981 is a deficient number, since it is larger than the sum of its proper divisors (3079419).

8994981 is a wasteful number, since it uses less digits than its factorization.

8994981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20275.

The product of its digits is 186624, while the sum is 48.

The square root of 8994981 is about 2999.1633833454. The cubic root of 8994981 is about 207.9697086682.

The spelling of 8994981 in words is "eight million, nine hundred ninety-four thousand, nine hundred eighty-one".

Divisors: 1 3 149 447 20123 60369 2998327 8994981