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999994842 = 2337211174347
BaseRepresentation
bin111011100110101…
…011010111011010
32120200200000001000
4323212223113122
54021444313332
6243121205430
733531546600
oct7346532732
92520600030
10999994842
1147351aa20
1223aa90876
1312c237a32
1496b49870
155cbceb7c
hex3b9ab5da

999994842 has 384 divisors, whose sum is σ = 3120353280. Its totient is φ = 233694720.

The previous prime is 999994837. The next prime is 999994843. The reversal of 999994842 is 248499999.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 999994842.

It is not an unprimeable number, because it can be changed into a prime (999994843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 21276463 + ... + 21276509.

It is an arithmetic number, because the mean of its divisors is an integer number (8125920).

Almost surely, 2999994842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999994842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1560176640).

999994842 is an abundant number, since it is smaller than the sum of its proper divisors (2120358438).

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

999994842 is a wasteful number, since it uses less digits than its factorization.

999994842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 130 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 63.

The square root of 999994842 is about 31622.6950464378. The cubic root of 999994842 is about 999.9982806637.

The spelling of 999994842 in words is "nine hundred ninety-nine million, nine hundred ninety-four thousand, eight hundred forty-two".