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8220701 = 29328057
BaseRepresentation
bin11111010111000000011101
3120110122200102
4133113000131
54101030301
6452110445
7126606026
oct37270035
916418612
108220701
114705375
122905425
13191aa28
14113dc4d
15ac5b6b
hex7d701d

8220701 has 4 divisors (see below), whose sum is σ = 8249052. Its totient is φ = 8192352.

The previous prime is 8220691. The next prime is 8220713. The reversal of 8220701 is 1070228.

8220701 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6400900 + 1819801 = 2530^2 + 1349^2 .

It is a cyclic number.

It is not a de Polignac number, because 8220701 - 222 = 4026397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8220731) 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, 13736 + ... + 14321.

It is an arithmetic number, because the mean of its divisors is an integer number (2062263).

Almost surely, 28220701 is an apocalyptic number.

It is an amenable number.

8220701 is a deficient number, since it is larger than the sum of its proper divisors (28351).

8220701 is a wasteful number, since it uses less digits than its factorization.

8220701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28350.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 8220701 is about 2867.1764856737. The cubic root of 8220701 is about 201.8225167173.

Adding to 8220701 its reverse (1070228), we get a palindrome (9290929).

The spelling of 8220701 in words is "eight million, two hundred twenty thousand, seven hundred one".

Divisors: 1 293 28057 8220701