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42254769 = 3294631049
BaseRepresentation
bin1010000100110…
…0000110110001
32221111202122110
42201030012301
541304123034
64105355533
71022105514
oct241140661
987452573
1042254769
11219406a7
1212198ba9
1389a5c2b
14587cd7b
153a99de9
hex284c1b1

42254769 has 16 divisors (see below), whose sum is σ = 58464000. Its totient is φ = 27113856.

The previous prime is 42254759. The next prime is 42254791. The reversal of 42254769 is 96745224.

It is not a de Polignac number, because 42254769 - 29 = 42254257 is a prime.

It is a super-3 number, since 3×422547693 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (42254759) 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, 39757 + ... + 40805.

It is an arithmetic number, because the mean of its divisors is an integer number (3654000).

Almost surely, 242254769 is an apocalyptic number.

It is an amenable number.

42254769 is a deficient number, since it is larger than the sum of its proper divisors (16209231).

42254769 is a wasteful number, since it uses less digits than its factorization.

42254769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544.

The product of its digits is 120960, while the sum is 39.

The square root of 42254769 is about 6500.3668358024. The cubic root of 42254769 is about 348.3040924354.

The spelling of 42254769 in words is "forty-two million, two hundred fifty-four thousand, seven hundred sixty-nine".

Divisors: 1 3 29 87 463 1049 1389 3147 13427 30421 40281 91263 485687 1457061 14084923 42254769