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994000284 = 2232711572477
BaseRepresentation
bin111011001111110…
…011110110011100
32120021101110001100
4323033303312130
54013431002114
6242344513100
733426602004
oct7317636634
92507343040
10994000284
114700a6142
12238a7b790
1312ac19364
1496029004
155c3e8909
hex3b3f3d9c

994000284 has 72 divisors (see below), whose sum is σ = 2565265248. Its totient is φ = 324455040.

The previous prime is 994000279. The next prime is 994000309. The reversal of 994000284 is 482000499.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 400054 + ... + 402530.

It is an arithmetic number, because the mean of its divisors is an integer number (35628684).

Almost surely, 2994000284 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 994000284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1282632624).

994000284 is an abundant number, since it is smaller than the sum of its proper divisors (1571264964).

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

994000284 is a wasteful number, since it uses less digits than its factorization.

994000284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2715 (or 2710 counting only the distinct ones).

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

The square root of 994000284 is about 31527.7700448351. The cubic root of 994000284 is about 997.9960816603.

The spelling of 994000284 in words is "nine hundred ninety-four million, two hundred eighty-four", and thus it is an aban number.

Divisors: 1 2 3 4 6 9 12 18 36 71 142 157 213 284 314 426 471 628 639 852 942 1278 1413 1884 2477 2556 2826 4954 5652 7431 9908 11147 14862 22293 22294 29724 33441 44586 44588 66882 89172 100323 133764 175867 200646 351734 388889 401292 527601 703468 777778 1055202 1166667 1555556 1582803 2110404 2333334 3165606 3500001 4666668 6331212 7000002 14000004 27611119 55222238 82833357 110444476 165666714 248500071 331333428 497000142 994000284