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385430847 = 31011272049
BaseRepresentation
bin10110111110010…
…011010100111111
3222212020220201120
4112332103110333
51242132241342
6102125042023
712360052044
oct2676232477
9885226646
10385430847
1118862499a
12a90b6313
1361b100b9
14392911cb
1523c86aec
hex16f9353f

385430847 has 8 divisors (see below), whose sum is σ = 518996400. Its totient is φ = 254409600.

The previous prime is 385430839. The next prime is 385430863. The reversal of 385430847 is 748034583.

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

It is not a de Polignac number, because 385430847 - 23 = 385430839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 385430799 and 385430808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385430897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635722 + ... + 636327.

It is an arithmetic number, because the mean of its divisors is an integer number (64874550).

Almost surely, 2385430847 is an apocalyptic number.

385430847 is a deficient number, since it is larger than the sum of its proper divisors (133565553).

385430847 is a wasteful number, since it uses less digits than its factorization.

385430847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272153.

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 385430847 is about 19632.3927986377. The cubic root of 385430847 is about 727.7499033997.

The spelling of 385430847 in words is "three hundred eighty-five million, four hundred thirty thousand, eight hundred forty-seven".

Divisors: 1 3 101 303 1272049 3816147 128476949 385430847