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54220201 = 77745743
BaseRepresentation
bin1100111011010…
…1010110101001
310210000200010121
43032311112221
5102340021301
65214043241
71225602250
oct316652651
9123020117
1054220201
1128673492
12161a9521
13b305279
1472b5797
154b603a1
hex33b55a9

54220201 has 4 divisors (see below), whose sum is σ = 61965952. Its totient is φ = 46474452.

The previous prime is 54220189. The next prime is 54220249. The reversal of 54220201 is 10202245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10202245 = 52040449.

It is a cyclic number.

It is not a de Polignac number, because 54220201 - 215 = 54187433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54220261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3872865 + ... + 3872878.

It is an arithmetic number, because the mean of its divisors is an integer number (15491488).

Almost surely, 254220201 is an apocalyptic number.

It is an amenable number.

54220201 is a deficient number, since it is larger than the sum of its proper divisors (7745751).

54220201 is an equidigital number, since it uses as much as digits as its factorization.

54220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7745750.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 54220201 is about 7363.4367655328. The cubic root of 54220201 is about 378.4893883353.

Adding to 54220201 its reverse (10202245), we get a palindrome (64422446).

The spelling of 54220201 in words is "fifty-four million, two hundred twenty thousand, two hundred one".

Divisors: 1 7 7745743 54220201