Search a number
-
+
4142860353781 is a prime number
BaseRepresentation
bin111100010010010101101…
…110000100000011110101
3112200001110001122121102021
4330102111232010003311
51020334034222310111
612451112003113141
7605211640660222
oct74222556040365
915601401577367
104142860353781
111357a82735956
1256aab76727b1
13240893159956
141047307c2949
1572b72d88d71
hex3c495b840f5

4142860353781 has 2 divisors, whose sum is σ = 4142860353782. Its totient is φ = 4142860353780.

The previous prime is 4142860353767. The next prime is 4142860353817. The reversal of 4142860353781 is 1873530682414.

Together with next prime (4142860353817) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3146487059556 + 996373294225 = 1773834^2 + 998185^2 .

It is a cyclic number.

It is not a de Polignac number, because 4142860353781 - 223 = 4142851965173 is a prime.

It is a super-2 number, since 2×41428603537812 (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4142860353581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2071430176890 + 2071430176891.

It is an arithmetic number, because the mean of its divisors is an integer number (2071430176891).

Almost surely, 24142860353781 is an apocalyptic number.

It is an amenable number.

4142860353781 is a deficient number, since it is larger than the sum of its proper divisors (1).

4142860353781 is an equidigital number, since it uses as much as digits as its factorization.

4142860353781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 4142860353781 in words is "four trillion, one hundred forty-two billion, eight hundred sixty million, three hundred fifty-three thousand, seven hundred eighty-one".