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1228282449 = 3763953597
BaseRepresentation
bin100100100110110…
…0001101001010001
310011121020012202120
41021031201221101
510003420014244
6321514204453
742303141252
oct11115415121
93147205676
101228282449
11580373869
122a3423729
13167617764
14b91b2b29
1572c75819
hex49361a51

1228282449 has 8 divisors (see below), whose sum is σ = 1637954880. Its totient is φ = 818732496.

The previous prime is 1228282421. The next prime is 1228282457. The reversal of 1228282449 is 9442828221.

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

It is not a de Polignac number, because 1228282449 - 28 = 1228282193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1228282449.

It is not an unprimeable number, because it can be changed into a prime (1228282459) 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 7 ways as a sum of consecutive naturals, for example, 3882 + ... + 49715.

It is an arithmetic number, because the mean of its divisors is an integer number (204744360).

Almost surely, 21228282449 is an apocalyptic number.

It is an amenable number.

1228282449 is a deficient number, since it is larger than the sum of its proper divisors (409672431).

1228282449 is an equidigital number, since it uses as much as digits as its factorization.

1228282449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61239.

The product of its digits is 147456, while the sum is 42.

The square root of 1228282449 is about 35046.8607581335. The cubic root of 1228282449 is about 1070.9423232799.

The spelling of 1228282449 in words is "one billion, two hundred twenty-eight million, two hundred eighty-two thousand, four hundred forty-nine".

Divisors: 1 3 7639 22917 53597 160791 409427483 1228282449