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622401243 = 3839247279
BaseRepresentation
bin100101000110010…
…001011011011011
31121101011020222220
4211012101123123
52233313314433
6141432115123
721265215612
oct4506213333
91541136886
10622401243
1129a3692a2
12154535aa3
139bc3cc79
145c938879
15399952b3
hex251916db

622401243 has 8 divisors (see below), whose sum is σ = 830860800. Its totient is φ = 414437928.

The previous prime is 622401233. The next prime is 622401253. The reversal of 622401243 is 342104226.

622401243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (622401233) and next prime (622401253).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 622401243 - 25 = 622401211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (622401233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121123 + ... + 126156.

It is an arithmetic number, because the mean of its divisors is an integer number (103857600).

Almost surely, 2622401243 is an apocalyptic number.

622401243 is a deficient number, since it is larger than the sum of its proper divisors (208459557).

622401243 is a wasteful number, since it uses less digits than its factorization.

622401243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248121.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 622401243 is about 24947.9707190785. The cubic root of 622401243 is about 853.8013105734.

Adding to 622401243 its reverse (342104226), we get a palindrome (964505469).

The spelling of 622401243 in words is "six hundred twenty-two million, four hundred one thousand, two hundred forty-three".

Divisors: 1 3 839 2517 247279 741837 207467081 622401243