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42533141 = 723673943
BaseRepresentation
bin1010001001000…
…0000100010101
32222000220111112
42202100010111
541342030031
64115344405
71024345220
oct242200425
988026445
1042533141
1122010862
12122b2105
138a72851
1459125b7
153b0262b
hex2890115

42533141 has 16 divisors (see below), whose sum is σ = 51492864. Its totient is φ = 34342704.

The previous prime is 42533131. The next prime is 42533143. The reversal of 42533141 is 14133524.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42533141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42533143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8816 + ... + 12758.

It is an arithmetic number, because the mean of its divisors is an integer number (3218304).

Almost surely, 242533141 is an apocalyptic number.

It is an amenable number.

42533141 is a deficient number, since it is larger than the sum of its proper divisors (8959723).

42533141 is a wasteful number, since it uses less digits than its factorization.

42533141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040.

The product of its digits is 1440, while the sum is 23.

The square root of 42533141 is about 6521.7437085491. The cubic root of 42533141 is about 349.0672880606.

Adding to 42533141 its reverse (14133524), we get a palindrome (56666665).

The spelling of 42533141 in words is "forty-two million, five hundred thirty-three thousand, one hundred forty-one".

Divisors: 1 7 23 67 161 469 1541 3943 10787 27601 90689 264181 634823 1849267 6076163 42533141