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387482481 = 3316678609
BaseRepresentation
bin10111000110001…
…000001101110001
31000000010011001000
4113012020031301
51243143414411
6102241032213
712413355351
oct2706101561
91000104030
10387482481
111897a6361
12a9925669
136237ab99
1439666b61
152403e956
hex17188371

387482481 has 16 divisors (see below), whose sum is σ = 574459200. Its totient is φ = 258136704.

The previous prime is 387482453. The next prime is 387482489. The reversal of 387482481 is 184284783.

It is not a de Polignac number, because 387482481 - 214 = 387466097 is a prime.

It is a super-2 number, since 2×3874824812 = 300285346163830722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (387482489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40705 + ... + 49313.

It is an arithmetic number, because the mean of its divisors is an integer number (35903700).

Almost surely, 2387482481 is an apocalyptic number.

It is an amenable number.

387482481 is a deficient number, since it is larger than the sum of its proper divisors (186976719).

387482481 is a wasteful number, since it uses less digits than its factorization.

387482481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10285 (or 10279 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 387482481 is about 19684.5746969550. The cubic root of 387482481 is about 729.0388808879.

The spelling of 387482481 in words is "three hundred eighty-seven million, four hundred eighty-two thousand, four hundred eighty-one".

Divisors: 1 3 9 27 1667 5001 8609 15003 25827 45009 77481 232443 14351203 43053609 129160827 387482481