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380407145 = 5263289283
BaseRepresentation
bin10110101011001…
…000110101101001
3222111210200111112
4112223020311221
51234341012040
6101425240105
712266256506
oct2653106551
9874720445
10380407145
11185803578
12a7493035
1360a715b1
14387444ad
15235e3365
hex16ac8d69

380407145 has 8 divisors (see below), whose sum is σ = 458225856. Its totient is φ = 303167536.

The previous prime is 380407141. The next prime is 380407187. The reversal of 380407145 is 541704083.

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 380407145 - 22 = 380407141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (380407141) 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, 143327 + ... + 145956.

It is an arithmetic number, because the mean of its divisors is an integer number (57278232).

Almost surely, 2380407145 is an apocalyptic number.

It is an amenable number.

380407145 is a deficient number, since it is larger than the sum of its proper divisors (77818711).

380407145 is a wasteful number, since it uses less digits than its factorization.

380407145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289551.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 380407145 is about 19504.0289427595. The cubic root of 380407145 is about 724.5742375311.

The spelling of 380407145 in words is "three hundred eighty million, four hundred seven thousand, one hundred forty-five".

Divisors: 1 5 263 1315 289283 1446415 76081429 380407145