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387314331 = 3413148897
BaseRepresentation
bin10111000101011…
…111001010011011
3222222210121101020
4113011133022123
51243123024311
6102233253523
712412055205
oct2705371233
9888717336
10387314331
111896a0a98
12a98642a3
136231c4a1
1439621775
1524009c06
hex1715f29b

387314331 has 8 divisors (see below), whose sum is σ = 529014864. Its totient is φ = 251911680.

The previous prime is 387314329. The next prime is 387314351. The reversal of 387314331 is 133413783.

It is a happy number.

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

It is not a de Polignac number, because 387314331 - 21 = 387314329 is a prime.

It is a super-2 number, since 2×3873143312 = 300024781995955122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 387314292 and 387314301.

It is not an unprimeable number, because it can be changed into a prime (387314351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1574326 + ... + 1574571.

It is an arithmetic number, because the mean of its divisors is an integer number (66126858).

Almost surely, 2387314331 is an apocalyptic number.

387314331 is a deficient number, since it is larger than the sum of its proper divisors (141700533).

387314331 is a wasteful number, since it uses less digits than its factorization.

387314331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3148941.

The product of its digits is 18144, while the sum is 33.

The square root of 387314331 is about 19680.3031226656. The cubic root of 387314331 is about 728.9334089155.

The spelling of 387314331 in words is "three hundred eighty-seven million, three hundred fourteen thousand, three hundred thirty-one".

Divisors: 1 3 41 123 3148897 9446691 129104777 387314331