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42004314281 is a prime number
BaseRepresentation
bin100111000111101001…
…101111100010101001
311000102100112020210202
4213013221233202221
51142011101024111
631144014121545
73014622531446
oct470751574251
9130370466722
1042004314281
11168a5382026
1281831b02b5
133c653aa547
14206686a9cd
15115c94cb3b
hex9c7a6f8a9

42004314281 has 2 divisors, whose sum is σ = 42004314282. Its totient is φ = 42004314280.

The previous prime is 42004314257. The next prime is 42004314293. The reversal of 42004314281 is 18241340024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39314958400 + 2689355881 = 198280^2 + 51859^2 .

It is a cyclic number.

It is not a de Polignac number, because 42004314281 - 214 = 42004297897 is a prime.

It is a super-2 number, since 2×420043142812 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42004314181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21002157140 + 21002157141.

It is an arithmetic number, because the mean of its divisors is an integer number (21002157141).

Almost surely, 242004314281 is an apocalyptic number.

It is an amenable number.

42004314281 is a deficient number, since it is larger than the sum of its proper divisors (1).

42004314281 is an equidigital number, since it uses as much as digits as its factorization.

42004314281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 29.

The spelling of 42004314281 in words is "forty-two billion, four million, three hundred fourteen thousand, two hundred eighty-one".