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427161 = 3720341
BaseRepresentation
bin1101000010010011001
3210200221210
41220102121
5102132121
613053333
73426240
oct1502231
9720853
10427161
11271a29
12187249
1311c577
14b1957
1586876
hex68499

427161 has 8 divisors (see below), whose sum is σ = 650944. Its totient is φ = 244080.

The previous prime is 427151. The next prime is 427169. The reversal of 427161 is 161724.

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

It is not a de Polignac number, because 427161 - 215 = 394393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 20341 = 427161 / (4 + 2 + 7 + 1 + 6 + 1).

It is a Curzon number.

427161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (427169) 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, 10150 + ... + 10191.

It is an arithmetic number, because the mean of its divisors is an integer number (81368).

2427161 is an apocalyptic number.

It is an amenable number.

427161 is a deficient number, since it is larger than the sum of its proper divisors (223783).

427161 is a wasteful number, since it uses less digits than its factorization.

427161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20351.

The product of its digits is 336, while the sum is 21.

The square root of 427161 is about 653.5755503383. The cubic root of 427161 is about 75.3119451817.

Adding to 427161 its reverse (161724), we get a palindrome (588885).

The spelling of 427161 in words is "four hundred twenty-seven thousand, one hundred sixty-one".

Divisors: 1 3 7 21 20341 61023 142387 427161