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8223541 is a prime number
BaseRepresentation
bin11111010111101100110101
3120110210120121
4133113230311
54101123131
6452131541
7126620224
oct37275465
916423517
108223541
114707517
122906bb1
13191c101
141140cbb
15ac6911
hex7d7b35

8223541 has 2 divisors, whose sum is σ = 8223542. Its totient is φ = 8223540.

The previous prime is 8223499. The next prime is 8223569. The reversal of 8223541 is 1453228.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4498641 + 3724900 = 2121^2 + 1930^2 .

It is a cyclic number.

It is not a de Polignac number, because 8223541 - 213 = 8215349 is a prime.

It is a pancake number, because a pancake can be divided into 8223541 parts by 4055 straight cuts.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8226541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4111770 + 4111771.

It is an arithmetic number, because the mean of its divisors is an integer number (4111771).

Almost surely, 28223541 is an apocalyptic number.

It is an amenable number.

8223541 is a deficient number, since it is larger than the sum of its proper divisors (1).

8223541 is an equidigital number, since it uses as much as digits as its factorization.

8223541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 25.

The square root of 8223541 is about 2867.6717036648. The cubic root of 8223541 is about 201.8457552041.

Adding to 8223541 its reverse (1453228), we get a palindrome (9676769).

The spelling of 8223541 in words is "eight million, two hundred twenty-three thousand, five hundred forty-one".