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380795281 is a prime number
BaseRepresentation
bin10110101100100…
…111100110010001
3222112112101220221
4112230213212101
51234440422111
6101441433041
712302464216
oct2654474621
9875471827
10380795281
11185a49149
12a763b781
1360b79169
1438805b0d
152366d371
hex16b27991

380795281 has 2 divisors, whose sum is σ = 380795282. Its totient is φ = 380795280.

The previous prime is 380795251. The next prime is 380795339. The reversal of 380795281 is 182597083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378497025 + 2298256 = 19455^2 + 1516^2 .

It is a cyclic number.

It is not a de Polignac number, because 380795281 - 29 = 380794769 is a prime.

It is a super-2 number, since 2×3807952812 = 290010092063737922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (380795251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190397640 + 190397641.

It is an arithmetic number, because the mean of its divisors is an integer number (190397641).

Almost surely, 2380795281 is an apocalyptic number.

It is an amenable number.

380795281 is a deficient number, since it is larger than the sum of its proper divisors (1).

380795281 is an equidigital number, since it uses as much as digits as its factorization.

380795281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 380795281 is about 19513.9765552796. The cubic root of 380795281 is about 724.8205856479.

The spelling of 380795281 in words is "three hundred eighty million, seven hundred ninety-five thousand, two hundred eighty-one".