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42881453 = 233076073
BaseRepresentation
bin1010001110010…
…1000110101101
32222200121021222
42203211012231
541434201303
64131033125
71030325546
oct243450655
988617258
1042881453
112222951a
121243b7a5
138b65254
1459a34cd
153b70938
hex28e51ad

42881453 has 8 divisors (see below), whose sum is σ = 44899008. Its totient is φ = 40876704.

The previous prime is 42881413. The next prime is 42881467. The reversal of 42881453 is 35418824.

42881453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42881453 - 26 = 42881389 is a prime.

It is a super-2 number, since 2×428814532 = 3677638022782418, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42881413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4025 + ... + 10097.

It is an arithmetic number, because the mean of its divisors is an integer number (5612376).

Almost surely, 242881453 is an apocalyptic number.

It is an amenable number.

42881453 is a deficient number, since it is larger than the sum of its proper divisors (2017555).

42881453 is a wasteful number, since it uses less digits than its factorization.

42881453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6403.

The product of its digits is 30720, while the sum is 35.

The square root of 42881453 is about 6548.3931616848. The cubic root of 42881453 is about 350.0175583028.

It can be divided in two parts, 42881 and 453, that added together give a palindrome (43334).

The spelling of 42881453 in words is "forty-two million, eight hundred eighty-one thousand, four hundred fifty-three".

Divisors: 1 23 307 6073 7061 139679 1864411 42881453