Base | Representation |
---|---|
bin | 10001000001011… |
… | …10010111110111 |
3 | 100221200210200002 |
4 | 20200232113313 |
5 | 243023440104 |
6 | 22100341515 |
7 | 3352514453 |
oct | 1040562767 |
9 | 327623602 |
10 | 142796279 |
11 | 73671a5a |
12 | 3b9a489b |
13 | 23779052 |
14 | 14d71663 |
15 | c80a01e |
hex | 882e5f7 |
142796279 has 2 divisors, whose sum is σ = 142796280. Its totient is φ = 142796278.
The previous prime is 142796273. The next prime is 142796309. The reversal of 142796279 is 972697241.
It is a weak prime.
It is an emirp because it is prime and its reverse (972697241) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 142796279 - 24 = 142796263 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (142796273) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71398139 + 71398140.
It is an arithmetic number, because the mean of its divisors is an integer number (71398140).
Almost surely, 2142796279 is an apocalyptic number.
142796279 is a deficient number, since it is larger than the sum of its proper divisors (1).
142796279 is an equidigital number, since it uses as much as digits as its factorization.
142796279 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 381024, while the sum is 47.
The square root of 142796279 is about 11949.7397042781. The cubic root of 142796279 is about 522.6837082090.
The spelling of 142796279 in words is "one hundred forty-two million, seven hundred ninety-six thousand, two hundred seventy-nine".
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