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387161307 = 32133309071
BaseRepresentation
bin10111000100111…
…001110011011011
3222222111211110200
4113010321303123
51243103130212
6102230113243
712410550111
oct2704716333
9888454420
10387161307
111895a7025
12a97ab823
1362297940
14395c1ab1
1523ec96dc
hex17139cdb

387161307 has 12 divisors (see below), whose sum is σ = 602251104. Its totient is φ = 238253040.

The previous prime is 387161279. The next prime is 387161311. The reversal of 387161307 is 703161783.

387161307 is a `hidden beast` number, since 38 + 7 + 1 + 613 + 0 + 7 = 666.

It is not a de Polignac number, because 387161307 - 28 = 387161051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (387161317) 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 11 ways as a sum of consecutive naturals, for example, 1654419 + ... + 1654652.

It is an arithmetic number, because the mean of its divisors is an integer number (50187592).

Almost surely, 2387161307 is an apocalyptic number.

387161307 is a deficient number, since it is larger than the sum of its proper divisors (215089797).

387161307 is a wasteful number, since it uses less digits than its factorization.

387161307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309090 (or 3309087 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 387161307 is about 19676.4149935907. The cubic root of 387161307 is about 728.8373981818.

The spelling of 387161307 in words is "three hundred eighty-seven million, one hundred sixty-one thousand, three hundred seven".

Divisors: 1 3 9 13 39 117 3309071 9927213 29781639 43017923 129053769 387161307