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994810061 = 7142115723
BaseRepresentation
bin111011010010111…
…001100011001101
32120022220120212002
4323102321203031
54014132410221
6242414122045
733436513610
oct7322714315
92508816762
10994810061
114705a9583
122391b0325
1312b140b0b
149619a177
155c50880b
hex3b4b98cd

994810061 has 4 divisors (see below), whose sum is σ = 1136925792. Its totient is φ = 852694332.

The previous prime is 994810051. The next prime is 994810081. The reversal of 994810061 is 160018499.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2k-994810061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 994809997 and 994810024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994810001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71057855 + ... + 71057868.

It is an arithmetic number, because the mean of its divisors is an integer number (284231448).

Almost surely, 2994810061 is an apocalyptic number.

It is an amenable number.

994810061 is a deficient number, since it is larger than the sum of its proper divisors (142115731).

994810061 is a wasteful number, since it uses less digits than its factorization.

994810061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142115730.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 994810061 is about 31540.6097119254. The cubic root of 994810061 is about 998.2670188445.

The spelling of 994810061 in words is "nine hundred ninety-four million, eight hundred ten thousand, sixty-one".

Divisors: 1 7 142115723 994810061