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998244 = 22351379
BaseRepresentation
bin11110011101101100100
31212201100000
43303231210
5223420434
633221300
711325222
oct3635544
91781300
10998244
11621aa5
12401830
1328c4a0
141bdb12
1514ab99
hexf3b64

998244 has 72 divisors (see below), whose sum is σ = 2853760. Its totient is φ = 303264.

The previous prime is 998243. The next prime is 998273. The reversal of 998244 is 442899.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 998199 and 998208.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 998244.

It is not an unprimeable number, because it can be changed into a prime (998243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12597 + ... + 12675.

2998244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1426880).

998244 is an abundant number, since it is smaller than the sum of its proper divisors (1855516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

998244 is a wasteful number, since it uses less digits than its factorization.

998244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 97 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 998244 is about 999.1216142192. The cubic root of 998244 is about 99.9414323717.

The spelling of 998244 in words is "nine hundred ninety-eight thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 79 81 108 117 156 158 162 234 237 243 316 324 351 468 474 486 702 711 948 972 1027 1053 1404 1422 2054 2106 2133 2844 3081 3159 4108 4212 4266 6162 6318 6399 8532 9243 12324 12636 12798 18486 19197 25596 27729 36972 38394 55458 76788 83187 110916 166374 249561 332748 499122 998244