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427749838159 = 7238125664477
BaseRepresentation
bin1100011100101111110…
…00001000110101001111
31111220002121210012121111
412032113320020311033
524002012424310114
6524301111312451
742622016430160
oct6162770106517
91456077705544
10427749838159
111554536a5546
126aa9867b727
133144b78ab17
14169bb833767
15b1d7be7bc4
hex6397e08d4f

427749838159 has 8 divisors (see below), whose sum is σ = 489062292768. Its totient is φ = 366488717280.

The previous prime is 427749838157. The next prime is 427749838183. The reversal of 427749838159 is 951838947724.

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

It is not a de Polignac number, because 427749838159 - 21 = 427749838157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 427749838094 and 427749838103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427749838157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12815572 + ... + 12848905.

It is an arithmetic number, because the mean of its divisors is an integer number (61132786596).

Almost surely, 2427749838159 is an apocalyptic number.

427749838159 is a deficient number, since it is larger than the sum of its proper divisors (61312454609).

427749838159 is a wasteful number, since it uses less digits than its factorization.

427749838159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25666865.

The product of its digits is 121927680, while the sum is 67.

The spelling of 427749838159 in words is "four hundred twenty-seven billion, seven hundred forty-nine million, eight hundred thirty-eight thousand, one hundred fifty-nine".

Divisors: 1 7 2381 16667 25664477 179651339 61107119737 427749838159