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7228163441 = 15434684487
BaseRepresentation
bin1101011101101010…
…10000010101110001
3200122202001202012002
412232311100111301
5104300402212231
63153124343345
7344056242542
oct65665202561
920582052162
107228163441
11307a1231a4
121498844b55
138b26712b5
144c7d904c9
152c48880cb
hex1aed50571

7228163441 has 4 divisors (see below), whose sum is σ = 7232849472. Its totient is φ = 7223477412.

The previous prime is 7228163419. The next prime is 7228163461. The reversal of 7228163441 is 1443618227.

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: 1443618227 = 6012402027.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7228163441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7228163395 and 7228163404.

It is not an unprimeable number, because it can be changed into a prime (7228163461) 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, 2340701 + ... + 2343786.

It is an arithmetic number, because the mean of its divisors is an integer number (1808212368).

Almost surely, 27228163441 is an apocalyptic number.

It is an amenable number.

7228163441 is a deficient number, since it is larger than the sum of its proper divisors (4686031).

7228163441 is a wasteful number, since it uses less digits than its factorization.

7228163441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4686030.

The product of its digits is 64512, while the sum is 38.

The square root of 7228163441 is about 85018.6064400023. The cubic root of 7228163441 is about 1933.4932253380.

The spelling of 7228163441 in words is "seven billion, two hundred twenty-eight million, one hundred sixty-three thousand, four hundred forty-one".

Divisors: 1 1543 4684487 7228163441