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3220285811 = 94712372749
BaseRepresentation
bin1011111111110001…
…1010100101110011
322022102112110122212
42333330122211303
523043343121221
61251313522335
7142541656241
oct27774324563
98272473585
103220285811
111402849436
1275a5733ab
133c4222082
14227989791
1513caa8b5b
hexbff1a973

3220285811 has 8 divisors (see below), whose sum is σ = 3227466000. Its totient is φ = 3213115488.

The previous prime is 3220285807. The next prime is 3220285823. The reversal of 3220285811 is 1185820223.

It is a happy number.

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 3220285811 - 22 = 3220285807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3220285801) 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, 1170065 + ... + 1172813.

It is an arithmetic number, because the mean of its divisors is an integer number (403433250).

Almost surely, 23220285811 is an apocalyptic number.

3220285811 is a deficient number, since it is larger than the sum of its proper divisors (7180189).

3220285811 is a wasteful number, since it uses less digits than its factorization.

3220285811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4933.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 3220285811 is about 56747.5621590919. The cubic root of 3220285811 is about 1476.7199411492.

The spelling of 3220285811 in words is "three billion, two hundred twenty million, two hundred eighty-five thousand, eight hundred eleven".

Divisors: 1 947 1237 2749 1171439 2603303 3400513 3220285811