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387561106 = 2301964187
BaseRepresentation
bin10111000110011…
…011011010010010
31000000021010220001
4113012123122102
51243203423411
6102242440214
712414133522
oct2706333222
91000233801
10387561106
1118984a439
12a996306a
13623a78ca
1439687682
1524057dc1
hex1719b692

387561106 has 8 divisors (see below), whose sum is σ = 581543280. Its totient is φ = 193713348.

The previous prime is 387561067. The next prime is 387561127. The reversal of 387561106 is 601165783.

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

It is a super-2 number, since 2×3875611062 = 300407221767886472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26056 + ... + 38131.

It is an arithmetic number, because the mean of its divisors is an integer number (72692910).

Almost surely, 2387561106 is an apocalyptic number.

387561106 is a deficient number, since it is larger than the sum of its proper divisors (193982174).

387561106 is a wasteful number, since it uses less digits than its factorization.

387561106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67208.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 387561106 is about 19686.5717177979. The cubic root of 387561106 is about 729.0881878959.

The spelling of 387561106 in words is "three hundred eighty-seven million, five hundred sixty-one thousand, one hundred six".

Divisors: 1 2 3019 6038 64187 128374 193780553 387561106