Base | Representation |
---|---|
bin | 1010001111010… |
… | …0001100101111 |
3 | 2222210202002211 |
4 | 2203310030233 |
5 | 41443141104 |
6 | 4132231251 |
7 | 1031004031 |
oct | 243641457 |
9 | 88722084 |
10 | 42943279 |
11 | 22270a15 |
12 | 1246b527 |
13 | 8b87432 |
14 | 59bbc51 |
15 | 3b83e04 |
hex | 28f432f |
42943279 has 2 divisors, whose sum is σ = 42943280. Its totient is φ = 42943278.
The previous prime is 42943259. The next prime is 42943297. The reversal of 42943279 is 97234924.
Together with next prime (42943297) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 42943279 - 27 = 42943151 is a prime.
It is a super-2 number, since 2×429432792 = 3688250422543682, which contains 22 as substring.
It is a pancake number, because a pancake can be divided into 42943279 parts by 9267 straight cuts.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (42943259) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21471639 + 21471640.
It is an arithmetic number, because the mean of its divisors is an integer number (21471640).
Almost surely, 242943279 is an apocalyptic number.
42943279 is a deficient number, since it is larger than the sum of its proper divisors (1).
42943279 is an equidigital number, since it uses as much as digits as its factorization.
42943279 is an evil number, because the sum of its binary digits is even.
The product of its digits is 108864, while the sum is 40.
The square root of 42943279 is about 6553.1121614085. The cubic root of 42943279 is about 350.1856946584.
The spelling of 42943279 in words is "forty-two million, nine hundred forty-three thousand, two hundred seventy-nine".
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