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427854137 = 1648725951
BaseRepresentation
bin11001100000001…
…000100100111001
31002211002020112112
4121200020210321
51334012313022
6110242222105
713413462104
oct3140104471
91084066475
10427854137
111aa570167
12bb354935
136a844939
1440b7573b
15278668e2
hex19808939

427854137 has 4 divisors (see below), whose sum is σ = 427896576. Its totient is φ = 427811700.

The previous prime is 427854109. The next prime is 427854169. The reversal of 427854137 is 731458724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 427854137 - 224 = 411076921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 427854094 and 427854103.

It is not an unprimeable number, because it can be changed into a prime (427854187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3512 + ... + 29462.

It is an arithmetic number, because the mean of its divisors is an integer number (106974144).

Almost surely, 2427854137 is an apocalyptic number.

It is an amenable number.

427854137 is a deficient number, since it is larger than the sum of its proper divisors (42439).

427854137 is a wasteful number, since it uses less digits than its factorization.

427854137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42438.

The product of its digits is 188160, while the sum is 41.

The square root of 427854137 is about 20684.6352880586. The cubic root of 427854137 is about 753.5265839134.

The spelling of 427854137 in words is "four hundred twenty-seven million, eight hundred fifty-four thousand, one hundred thirty-seven".

Divisors: 1 16487 25951 427854137