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994000231 = 7220285719
BaseRepresentation
bin111011001111110…
…011110101100111
32120021101102222101
4323033303311213
54013431001411
6242344512531
733426601600
oct7317636547
92507342871
10994000231
114700a60a4
12238a7b747
1312ac19323
1496028da7
155c3e88c1
hex3b3f3d67

994000231 has 6 divisors (see below), whose sum is σ = 1156286040. Its totient is φ = 852000156.

The previous prime is 994000229. The next prime is 994000247. The reversal of 994000231 is 132000499.

It is a happy number.

It is not a de Polignac number, because 994000231 - 21 = 994000229 is a prime.

It is a super-2 number, since 2×9940002312 = 1976072918456106722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 994000231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994000261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10142811 + ... + 10142908.

It is an arithmetic number, because the mean of its divisors is an integer number (192714340).

Almost surely, 2994000231 is an apocalyptic number.

994000231 is a deficient number, since it is larger than the sum of its proper divisors (162285809).

994000231 is a wasteful number, since it uses less digits than its factorization.

994000231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20285733 (or 20285726 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 994000231 is about 31527.7692043062. The cubic root of 994000231 is about 997.9960639226.

The spelling of 994000231 in words is "nine hundred ninety-four million, two hundred thirty-one", and thus it is an aban number.

Divisors: 1 7 49 20285719 142000033 994000231