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8552020 = 2251725153
BaseRepresentation
bin100000100111…
…111001010100
3121002111011111
4200213321110
54142131040
6503144404
7132456001
oct40477124
917074144
108552020
114911294
122a45104
131a05789
1411c88a8
15b3ddea
hex827e54

8552020 has 24 divisors (see below), whose sum is σ = 19016424. Its totient is φ = 3219456.

The previous prime is 8551997. The next prime is 8552039. The reversal of 8552020 is 202558.

It can be written as a sum of positive squares in 4 ways, for example, as 1926544 + 6625476 = 1388^2 + 2574^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8551982 and 8552000.

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, 12237 + ... + 12916.

It is an arithmetic number, because the mean of its divisors is an integer number (792351).

Almost surely, 28552020 is an apocalyptic number.

It is an amenable number.

8552020 is an abundant number, since it is smaller than the sum of its proper divisors (10464404).

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

8552020 is a wasteful number, since it uses less digits than its factorization.

8552020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25179 (or 25177 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 8552020 is about 2924.3836957554. The cubic root of 8552020 is about 204.4982374814.

Adding to 8552020 its reverse (202558), we get a palindrome (8754578).

The spelling of 8552020 in words is "eight million, five hundred fifty-two thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 25153 50306 100612 125765 251530 427601 503060 855202 1710404 2138005 4276010 8552020