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42898513 = 731197689
BaseRepresentation
bin1010001110100…
…1010001010001
32222201110200211
42203221101101
541440223023
64131244121
71030426360
oct243512121
988643624
1042898513
1122240319
1212449641
138b6cc48
1459a97d7
153b75a0d
hex28e9451

42898513 has 8 divisors (see below), whose sum is σ = 50608640. Its totient is φ = 35583840.

The previous prime is 42898507. The next prime is 42898517. The reversal of 42898513 is 31589824.

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 42898513 - 25 = 42898481 is a prime.

It is a super-2 number, since 2×428985132 = 3680564835222338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42898517) 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, 98628 + ... + 99061.

It is an arithmetic number, because the mean of its divisors is an integer number (6326080).

Almost surely, 242898513 is an apocalyptic number.

It is an amenable number.

42898513 is a deficient number, since it is larger than the sum of its proper divisors (7710127).

42898513 is a wasteful number, since it uses less digits than its factorization.

42898513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197727.

The product of its digits is 69120, while the sum is 40.

The square root of 42898513 is about 6549.6956417837. The cubic root of 42898513 is about 350.0639692601.

The spelling of 42898513 in words is "forty-two million, eight hundred ninety-eight thousand, five hundred thirteen".

Divisors: 1 7 31 217 197689 1383823 6128359 42898513