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42754379 = 833731381
BaseRepresentation
bin1010001100011…
…0000101001011
32222110010222112
42203012011023
541421120004
64124212535
71026256223
oct243060513
988403875
1042754379
1122151aa8
121239a14b
138b1c465
14596d083
153b47e6e
hex28c614b

42754379 has 8 divisors (see below), whose sum is σ = 43416912. Its totient is φ = 42095520.

The previous prime is 42754343. The next prime is 42754391. The reversal of 42754379 is 97345724.

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 42754379 - 216 = 42688843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42754979) 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, 30269 + ... + 31649.

It is an arithmetic number, because the mean of its divisors is an integer number (5427114).

Almost surely, 242754379 is an apocalyptic number.

42754379 is a deficient number, since it is larger than the sum of its proper divisors (662533).

42754379 is a wasteful number, since it uses less digits than its factorization.

42754379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837.

The product of its digits is 211680, while the sum is 41.

The square root of 42754379 is about 6538.6832772356. The cubic root of 42754379 is about 349.6714713138.

The spelling of 42754379 in words is "forty-two million, seven hundred fifty-four thousand, three hundred seventy-nine".

Divisors: 1 83 373 1381 30959 114623 515113 42754379