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4158381 = 33114457
BaseRepresentation
bin1111110111001110101101
321211021020010
433313032231
52031032011
6225043433
750226363
oct17671655
97737203
104158381
112390287
121486579
13b279a6
147a3633
155721a6
hex3f73ad

4158381 has 8 divisors (see below), whose sum is σ = 5563584. Its totient is φ = 2762720.

The previous prime is 4158367. The next prime is 4158391. The reversal of 4158381 is 1838514.

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

It is a cyclic number.

It is not a de Polignac number, because 4158381 - 29 = 4157869 is a prime.

It is a super-2 number, since 2×41583812 = 34584265082322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4158391) 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, 1296 + ... + 3161.

It is an arithmetic number, because the mean of its divisors is an integer number (695448).

Almost surely, 24158381 is an apocalyptic number.

It is an amenable number.

4158381 is a deficient number, since it is larger than the sum of its proper divisors (1405203).

4158381 is a wasteful number, since it uses less digits than its factorization.

4158381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4771.

The product of its digits is 3840, while the sum is 30.

The square root of 4158381 is about 2039.2108767854. The cubic root of 4158381 is about 160.8081636780.

The spelling of 4158381 in words is "four million, one hundred fifty-eight thousand, three hundred eighty-one".

Divisors: 1 3 311 933 4457 13371 1386127 4158381