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42310071 = 32311391091
BaseRepresentation
bin1010000101100…
…1100110110111
32221121120111200
42201121212313
541312410241
64110503543
71022425656
oct241314667
987546450
1042310071
1121979201
1212204bb3
1389c515b
14589519d
153aab4b6
hex28599b7

42310071 has 24 divisors (see below), whose sum is σ = 63598080. Its totient is φ = 27075600.

The previous prime is 42310069. The next prime is 42310097. The reversal of 42310071 is 17001324.

It is not a de Polignac number, because 42310071 - 21 = 42310069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42310001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38236 + ... + 39326.

It is an arithmetic number, because the mean of its divisors is an integer number (2649920).

Almost surely, 242310071 is an apocalyptic number.

42310071 is a deficient number, since it is larger than the sum of its proper divisors (21288009).

42310071 is a wasteful number, since it uses less digits than its factorization.

42310071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267 (or 1264 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 42310071 is about 6504.6192048420. The cubic root of 42310071 is about 348.4559767971.

Adding to 42310071 its reverse (17001324), we get a palindrome (59311395).

The spelling of 42310071 in words is "forty-two million, three hundred ten thousand, seventy-one".

Divisors: 1 3 9 31 93 139 279 417 1091 1251 3273 4309 9819 12927 33821 38781 101463 151649 304389 454947 1364841 4701119 14103357 42310071