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42713481 = 361233407
BaseRepresentation
bin1010001011110…
…0000110001001
32222101001212210
42202330012021
541413312411
64123255333
71026026046
oct242740611
988331783
1042713481
11221242a8
121237a549
138b06965
14595c1cd
153b3aca6
hex28bc189

42713481 has 8 divisors (see below), whose sum is σ = 57885184. Its totient is φ = 28008720.

The previous prime is 42713479. The next prime is 42713497. The reversal of 42713481 is 18431724.

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

It is not a de Polignac number, because 42713481 - 21 = 42713479 is a prime.

It is a super-2 number, since 2×427134812 = 3648882918274722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42713471) 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 7 ways as a sum of consecutive naturals, for example, 116521 + ... + 116886.

It is an arithmetic number, because the mean of its divisors is an integer number (7235648).

Almost surely, 242713481 is an apocalyptic number.

It is an amenable number.

42713481 is a deficient number, since it is larger than the sum of its proper divisors (15171703).

42713481 is a wasteful number, since it uses less digits than its factorization.

42713481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233471.

The product of its digits is 5376, while the sum is 30.

The square root of 42713481 is about 6535.5551409196. Note that the first 3 decimals coincide. The cubic root of 42713481 is about 349.5599394538.

The spelling of 42713481 in words is "forty-two million, seven hundred thirteen thousand, four hundred eighty-one".

Divisors: 1 3 61 183 233407 700221 14237827 42713481