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380907089 is a prime number
BaseRepresentation
bin10110101101000…
…010111001010001
3222112202002021222
4112231002321101
51240003011324
6101444054425
712303441203
oct2655027121
9875662258
10380907089
11186015152
12a7694415
1360bb8014
1438834773
152369155e
hex16b42e51

380907089 has 2 divisors, whose sum is σ = 380907090. Its totient is φ = 380907088.

The previous prime is 380907073. The next prime is 380907101. The reversal of 380907089 is 980709083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 359747089 + 21160000 = 18967^2 + 4600^2 .

It is a cyclic number.

It is not a de Polignac number, because 380907089 - 24 = 380907073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (380907689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190453544 + 190453545.

It is an arithmetic number, because the mean of its divisors is an integer number (190453545).

Almost surely, 2380907089 is an apocalyptic number.

It is an amenable number.

380907089 is a deficient number, since it is larger than the sum of its proper divisors (1).

380907089 is an equidigital number, since it uses as much as digits as its factorization.

380907089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 380907089 is about 19516.8411634670. The cubic root of 380907089 is about 724.8915186083.

The spelling of 380907089 in words is "three hundred eighty million, nine hundred seven thousand, eighty-nine".