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8813020 = 225440651
BaseRepresentation
bin100001100111…
…100111011100
3121120202012011
4201213213130
54224004040
6512521004
7134623636
oct41474734
917522164
108813020
114a7a397
122b50164
131a97508
141255a56
15b913ea
hex8679dc

8813020 has 12 divisors (see below), whose sum is σ = 18507384. Its totient is φ = 3525200.

The previous prime is 8813011. The next prime is 8813029. The reversal of 8813020 is 203188.

It is an interprime number because it is at equal distance from previous prime (8813011) and next prime (8813029).

It is a junction number, because it is equal to n+sod(n) for n = 8812982 and 8813000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8813029) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 220306 + ... + 220345.

It is an arithmetic number, because the mean of its divisors is an integer number (1542282).

Almost surely, 28813020 is an apocalyptic number.

It is an amenable number.

8813020 is an abundant number, since it is smaller than the sum of its proper divisors (9694364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8813020 is a wasteful number, since it uses less digits than its factorization.

8813020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440660 (or 440658 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 8813020 is about 2968.6731042673. The cubic root of 8813020 is about 206.5577932734.

The spelling of 8813020 in words is "eight million, eight hundred thirteen thousand, twenty".

Divisors: 1 2 4 5 10 20 440651 881302 1762604 2203255 4406510 8813020