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5180221 = 23225227
BaseRepresentation
bin10011110000101100111101
3100202011221001
4103300230331
52311231341
6303010301
762013454
oct23605475
910664831
105180221
112a18a82
121899991
1310c4b27
1498bb9b
156c4d31
hex4f0b3d

5180221 has 4 divisors (see below), whose sum is σ = 5405472. Its totient is φ = 4954972.

The previous prime is 5180213. The next prime is 5180233. The reversal of 5180221 is 1220815.

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 5180221 - 23 = 5180213 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 (5180281) 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, 112591 + ... + 112636.

It is an arithmetic number, because the mean of its divisors is an integer number (1351368).

Almost surely, 25180221 is an apocalyptic number.

It is an amenable number.

5180221 is a deficient number, since it is larger than the sum of its proper divisors (225251).

5180221 is a wasteful number, since it uses less digits than its factorization.

5180221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225250.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 5180221 is about 2276.0098857430. The cubic root of 5180221 is about 173.0278837299.

The spelling of 5180221 in words is "five million, one hundred eighty thousand, two hundred twenty-one".

Divisors: 1 23 225227 5180221