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998227813 = 11458319801
BaseRepresentation
bin111011011111111…
…011111101100101
32120120100020010111
4323133323331211
54021021242223
6243015253021
733510540112
oct7337737545
92516306114
10998227813
11472523370
1223a37a171
1312ba6965b
1496809909
155c98130d
hex3b7fbf65

998227813 has 8 divisors (see below), whose sum is σ = 1089268416. Its totient is φ = 907236000.

The previous prime is 998227801. The next prime is 998227817. The reversal of 998227813 is 318722899.

It is the 12899-th star number.

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

It is not a de Polignac number, because 998227813 - 229 = 461356901 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 (998227817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40513 + ... + 60313.

It is an arithmetic number, because the mean of its divisors is an integer number (136158552).

Almost surely, 2998227813 is an apocalyptic number.

It is an amenable number.

998227813 is a deficient number, since it is larger than the sum of its proper divisors (91040603).

998227813 is a wasteful number, since it uses less digits than its factorization.

998227813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24395.

The product of its digits is 435456, while the sum is 49.

The square root of 998227813 is about 31594.7434393761. The cubic root of 998227813 is about 999.4089216953.

The spelling of 998227813 in words is "nine hundred ninety-eight million, two hundred twenty-seven thousand, eight hundred thirteen".

Divisors: 1 11 4583 19801 50413 217811 90747983 998227813