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58389221 = 115308111
BaseRepresentation
bin1101111010111…
…1001011100101
311001212110221202
43132233023211
5104421423341
65443252245
71306204652
oct336571345
9131773852
1058389221
112aa60760
121767a085
13c134a47
147a7cc29
1551d579b
hex37af2e5

58389221 has 4 divisors (see below), whose sum is σ = 63697344. Its totient is φ = 53081100.

The previous prime is 58389197. The next prime is 58389257. The reversal of 58389221 is 12298385.

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.

It is a cyclic number.

It is not a de Polignac number, because 58389221 - 214 = 58372837 is a prime.

It is a super-2 number, since 2×583892212 = 6818602257973682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58382221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2654045 + ... + 2654066.

It is an arithmetic number, because the mean of its divisors is an integer number (15924336).

Almost surely, 258389221 is an apocalyptic number.

It is an amenable number.

58389221 is a deficient number, since it is larger than the sum of its proper divisors (5308123).

58389221 is a wasteful number, since it uses less digits than its factorization.

58389221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5308122.

The product of its digits is 34560, while the sum is 38.

The square root of 58389221 is about 7641.2839889642. The cubic root of 58389221 is about 387.9516116544.

The spelling of 58389221 in words is "fifty-eight million, three hundred eighty-nine thousand, two hundred twenty-one".

Divisors: 1 11 5308111 58389221