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9041994 = 23213172273
BaseRepresentation
bin100010011111…
…100001001010
3122000101021200
4202133201022
54303320434
6521445030
7136566333
oct42374112
918011250
109041994
115116425
123040776
131b477c0
1412b528a
15bd9199
hex89f84a

9041994 has 48 divisors (see below), whose sum is σ = 22348872. Its totient is φ = 2617344.

The previous prime is 9041993. The next prime is 9042029. The reversal of 9041994 is 4991409.

It can be written as a sum of positive squares in 4 ways, for example, as 8625969 + 416025 = 2937^2 + 645^2 .

It is not an unprimeable number, because it can be changed into a prime (9041993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2842 + ... + 5114.

Almost surely, 29041994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9041994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11174436).

9041994 is an abundant number, since it is smaller than the sum of its proper divisors (13306878).

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

9041994 is a wasteful number, since it uses less digits than its factorization.

9041994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2311 (or 2308 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 9041994 is about 3006.9908546585. The cubic root of 9041994 is about 208.3314027910.

The spelling of 9041994 in words is "nine million, forty-one thousand, nine hundred ninety-four".

Divisors: 1 2 3 6 9 13 17 18 26 34 39 51 78 102 117 153 221 234 306 442 663 1326 1989 2273 3978 4546 6819 13638 20457 29549 38641 40914 59098 77282 88647 115923 177294 231846 265941 347769 502333 531882 695538 1004666 1506999 3013998 4520997 9041994