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994000285 = 51711694121
BaseRepresentation
bin111011001111110…
…011110110011101
32120021101110001101
4323033303312131
54013431002120
6242344513101
733426602005
oct7317636635
92507343041
10994000285
114700a6143
12238a7b791
1312ac19365
1496029005
155c3e890a
hex3b3f3d9d

994000285 has 8 divisors (see below), whose sum is σ = 1262965176. Its totient is φ = 748423680.

The previous prime is 994000279. The next prime is 994000309. The reversal of 994000285 is 582000499.

994000285 = 222932 + 222942.

It can be written as a sum of positive squares in 4 ways, for example, as 84254041 + 909746244 = 9179^2 + 30162^2 .

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

It is not a de Polignac number, because 994000285 - 211 = 993998237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5846976 + ... + 5847145.

It is an arithmetic number, because the mean of its divisors is an integer number (157870647).

Almost surely, 2994000285 is an apocalyptic number.

994000285 is the 22294-th centered square number.

It is an amenable number.

994000285 is a deficient number, since it is larger than the sum of its proper divisors (268964891).

994000285 is a wasteful number, since it uses less digits than its factorization.

994000285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11694143.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 994000285 is about 31527.7700606941. The cubic root of 994000285 is about 997.9960819950.

The spelling of 994000285 in words is "nine hundred ninety-four million, two hundred eighty-five", and thus it is an aban number.

Divisors: 1 5 17 85 11694121 58470605 198800057 994000285