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42711297 = 31947107149
BaseRepresentation
bin1010001011101…
…1100100000001
32222100221212220
42202323210001
541413230142
64123241253
71026016506
oct242734401
988327786
1042711297
11221226a2
1212379229
138b05975
14595b4ad
153b3a2ec
hex28bb901

42711297 has 32 divisors (see below), whose sum is σ = 62208000. Its totient is φ = 25979328.

The previous prime is 42711289. The next prime is 42711301. The reversal of 42711297 is 79211724.

It is not a de Polignac number, because 42711297 - 23 = 42711289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42712297) 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 31 ways as a sum of consecutive naturals, for example, 286579 + ... + 286727.

It is an arithmetic number, because the mean of its divisors is an integer number (1944000).

Almost surely, 242711297 is an apocalyptic number.

42711297 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

42711297 is a deficient number, since it is larger than the sum of its proper divisors (19496703).

42711297 is a wasteful number, since it uses less digits than its factorization.

42711297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325.

The product of its digits is 7056, while the sum is 33.

The square root of 42711297 is about 6535.3880527479. The cubic root of 42711297 is about 349.5539815228.

The spelling of 42711297 in words is "forty-two million, seven hundred eleven thousand, two hundred ninety-seven".

Divisors: 1 3 19 47 57 107 141 149 321 447 893 2033 2679 2831 5029 6099 7003 8493 15087 15943 21009 47829 95551 133057 286653 302917 399171 749321 908751 2247963 14237099 42711297