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42754757 is a prime number
BaseRepresentation
bin1010001100011…
…0001011000101
32222110011111112
42203012023011
541421123012
64124214405
71026260303
oct243061305
988404445
1042754757
1122152311
121239a405
138b1c696
14596d273
153b48122
hex28c62c5

42754757 has 2 divisors, whose sum is σ = 42754758. Its totient is φ = 42754756.

The previous prime is 42754753. The next prime is 42754781. The reversal of 42754757 is 75745724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34175716 + 8579041 = 5846^2 + 2929^2 .

It is a cyclic number.

It is not a de Polignac number, because 42754757 - 22 = 42754753 is a prime.

It is a super-2 number, since 2×427547572 = 3655938492258098, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42754753) 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 as a sum of consecutive naturals, namely, 21377378 + 21377379.

It is an arithmetic number, because the mean of its divisors is an integer number (21377379).

Almost surely, 242754757 is an apocalyptic number.

It is an amenable number.

42754757 is a deficient number, since it is larger than the sum of its proper divisors (1).

42754757 is an equidigital number, since it uses as much as digits as its factorization.

42754757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 274400, while the sum is 41.

The square root of 42754757 is about 6538.7121820738. The cubic root of 42754757 is about 349.6725018158.

The spelling of 42754757 in words is "forty-two million, seven hundred fifty-four thousand, seven hundred fifty-seven".