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386207249 = 4127134759
BaseRepresentation
bin10111000001010…
…000111000010001
3222220201100202012
4113001100320101
51242332112444
6102153432305
712366464441
oct2701207021
9886640665
10386207249
1118900524a
12a940b695
13620225cc
1439414121
1523d8bb9e
hex17050e11

386207249 has 8 divisors (see below), whose sum is σ = 397098240. Its totient is φ = 375386400.

The previous prime is 386207203. The next prime is 386207273. The reversal of 386207249 is 942702683.

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 386207249 - 220 = 385158673 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (386207749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6269 + ... + 28490.

It is an arithmetic number, because the mean of its divisors is an integer number (49637280).

Almost surely, 2386207249 is an apocalyptic number.

It is an amenable number.

386207249 is a deficient number, since it is larger than the sum of its proper divisors (10890991).

386207249 is a wasteful number, since it uses less digits than its factorization.

386207249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35071.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 386207249 is about 19652.1563447882. The cubic root of 386207249 is about 728.2382292280.

The spelling of 386207249 in words is "three hundred eighty-six million, two hundred seven thousand, two hundred forty-nine".

Divisors: 1 41 271 11111 34759 1425119 9419689 386207249