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380807109 = 3314103967
BaseRepresentation
bin10110101100101…
…010011111000101
3222112120000011000
4112230222133011
51234441311414
6101442003513
712302543544
oct2654523705
9875500130
10380807109
11185a57021
12a7646599
1360b81667
143880a15b
1523671b09
hex16b2a7c5

380807109 has 8 divisors (see below), whose sum is σ = 564158720. Its totient is φ = 253871388.

The previous prime is 380807099. The next prime is 380807117. The reversal of 380807109 is 901708083.

It is not a de Polignac number, because 380807109 - 29 = 380806597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380807179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7051957 + ... + 7052010.

It is an arithmetic number, because the mean of its divisors is an integer number (70519840).

Almost surely, 2380807109 is an apocalyptic number.

It is an amenable number.

380807109 is a deficient number, since it is larger than the sum of its proper divisors (183351611).

380807109 is a wasteful number, since it uses less digits than its factorization.

380807109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14103976 (or 14103970 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 380807109 is about 19514.2796177568. The cubic root of 380807109 is about 724.8280901957.

The spelling of 380807109 in words is "three hundred eighty million, eight hundred seven thousand, one hundred nine".

Divisors: 1 3 9 27 14103967 42311901 126935703 380807109