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380753081 is a prime number
BaseRepresentation
bin10110101100011…
…101010010111001
3222112110021000222
4112230131102321
51234433044311
6101440505425
712302230202
oct2654352271
9875407028
10380753081
11185a1a475
12a761b275
1360b62ba7
14387d45a9
1523660adb
hex16b1d4b9

380753081 has 2 divisors, whose sum is σ = 380753082. Its totient is φ = 380753080.

The previous prime is 380753069. The next prime is 380753083. The reversal of 380753081 is 180357083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 373107856 + 7645225 = 19316^2 + 2765^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-380753081 is a prime.

It is a super-2 number, since 2×3807530812 = 289945817381985122, which contains 22 as substring.

Together with 380753083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (380753083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190376540 + 190376541.

It is an arithmetic number, because the mean of its divisors is an integer number (190376541).

Almost surely, 2380753081 is an apocalyptic number.

It is an amenable number.

380753081 is a deficient number, since it is larger than the sum of its proper divisors (1).

380753081 is an equidigital number, since it uses as much as digits as its factorization.

380753081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 380753081 is about 19512.8952490398. The cubic root of 380753081 is about 724.7938096170.

The spelling of 380753081 in words is "three hundred eighty million, seven hundred fifty-three thousand, eighty-one".