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8057620 = 225402881
BaseRepresentation
bin11110101111001100010100
3120011100222101
4132233030110
54030320440
6444411444
7125326414
oct36571424
916140871
108057620
11460389a
122846b84
13189172c
1410da644
15a9269a
hex7af314

8057620 has 12 divisors (see below), whose sum is σ = 16921044. Its totient is φ = 3223040.

The previous prime is 8057611. The next prime is 8057627. The reversal of 8057620 is 267508.

It can be written as a sum of positive squares in 2 ways, for example, as 1483524 + 6574096 = 1218^2 + 2564^2 .

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8057627) 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, 201421 + ... + 201460.

It is an arithmetic number, because the mean of its divisors is an integer number (1410087).

Almost surely, 28057620 is an apocalyptic number.

It is an amenable number.

8057620 is an abundant number, since it is smaller than the sum of its proper divisors (8863424).

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

8057620 is a wasteful number, since it uses less digits than its factorization.

8057620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402890 (or 402888 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 8057620 is about 2838.5947227457. The cubic root of 8057620 is about 200.4790184573.

The spelling of 8057620 in words is "eight million, fifty-seven thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 402881 805762 1611524 2014405 4028810 8057620