Search a number
-
+
380737945 = 5710878227
BaseRepresentation
bin10110101100011…
…001100110011001
3222112102111021101
4112230121212121
51234432103240
6101440311401
712302135110
oct2654314631
9875374241
10380737945
11185a0a065
12a7612561
1360b59033
14387ccc77
152365b39a
hex16b19999

380737945 has 8 divisors (see below), whose sum is σ = 522154944. Its totient is φ = 261077424.

The previous prime is 380737921. The next prime is 380737949. The reversal of 380737945 is 549737083.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 380737945 - 25 = 380737913 is a prime.

It is a super-2 number, since 2×3807379452 = 289922765525646050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 380737895 and 380737904.

It is not an unprimeable number, because it can be changed into a prime (380737949) 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, 5439079 + ... + 5439148.

It is an arithmetic number, because the mean of its divisors is an integer number (65269368).

Almost surely, 2380737945 is an apocalyptic number.

380737945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

380737945 is a deficient number, since it is larger than the sum of its proper divisors (141416999).

380737945 is a wasteful number, since it uses less digits than its factorization.

380737945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10878239.

The product of its (nonzero) digits is 635040, while the sum is 46.

The square root of 380737945 is about 19512.5073991017. The cubic root of 380737945 is about 724.7842052960.

The spelling of 380737945 in words is "three hundred eighty million, seven hundred thirty-seven thousand, nine hundred forty-five".

Divisors: 1 5 7 35 10878227 54391135 76147589 380737945