Base | Representation |
---|---|
bin | 1011010010111… |
… | …11001111111101 |
3 | 20121022102000000 |
4 | 11221133033331 |
5 | 143224340411 |
6 | 13223024513 |
7 | 2230314666 |
oct | 551371775 |
9 | 217272000 |
10 | 94761981 |
11 | 49544096 |
12 | 2789b139 |
13 | 1682b5a2 |
14 | c82a36d |
15 | 84bc956 |
hex | 5a5f3fd |
94761981 has 28 divisors (see below), whose sum is σ = 145430208. Its totient is φ = 61685064.
The previous prime is 94761973. The next prime is 94761983. The reversal of 94761981 is 18916749.
It is a happy number.
It is not a de Polignac number, because 94761981 - 23 = 94761973 is a prime.
It is a super-2 number, since 2×947619812 = 17959666086088722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (94761983) 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 27 ways as a sum of consecutive naturals, for example, 29836 + ... + 32858.
It is an arithmetic number, because the mean of its divisors is an integer number (5193936).
Almost surely, 294761981 is an apocalyptic number.
It is an amenable number.
94761981 is a deficient number, since it is larger than the sum of its proper divisors (50668227).
94761981 is an equidigital number, since it uses as much as digits as its factorization.
94761981 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3084 (or 3069 counting only the distinct ones).
The product of its digits is 108864, while the sum is 45.
The square root of 94761981 is about 9734.5765701442. The cubic root of 94761981 is about 455.9088720255.
The spelling of 94761981 in words is "ninety-four million, seven hundred sixty-one thousand, nine hundred eighty-one".
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