Base | Representation |
---|---|
bin | 100101101000000110… |
… | …001001000000010111 |
3 | 10212021121212212012021 |
4 | 211220012021000113 |
5 | 1130220143132004 |
6 | 30320544434011 |
7 | 2630115034213 |
oct | 455006110027 |
9 | 125247785167 |
10 | 40401145879 |
11 | 16152436966 |
12 | 79b6318907 |
13 | 3a6b2055a3 |
14 | 1d5398d943 |
15 | 10b6d24d54 |
hex | 968189017 |
40401145879 has 2 divisors, whose sum is σ = 40401145880. Its totient is φ = 40401145878.
The previous prime is 40401145861. The next prime is 40401145913. The reversal of 40401145879 is 97854110404.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 40401145879 - 225 = 40367591447 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (40401145979) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20200572939 + 20200572940.
It is an arithmetic number, because the mean of its divisors is an integer number (20200572940).
Almost surely, 240401145879 is an apocalyptic number.
40401145879 is a deficient number, since it is larger than the sum of its proper divisors (1).
40401145879 is an equidigital number, since it uses as much as digits as its factorization.
40401145879 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 161280, while the sum is 43.
The spelling of 40401145879 in words is "forty billion, four hundred one million, one hundred forty-five thousand, eight hundred seventy-nine".
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