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42315111 = 3215729947
BaseRepresentation
bin1010000101101…
…0110101100111
32221121211102100
42201122311213
541313040421
64110543143
71022446446
oct241326547
987554370
1042315111
1121981a73
1212207ab3
1389c7537
145896d5d
153aacc26
hex285ad67

42315111 has 12 divisors (see below), whose sum is σ = 61513192. Its totient is φ = 28029456.

The previous prime is 42315103. The next prime is 42315113. The reversal of 42315111 is 11151324.

It is not a de Polignac number, because 42315111 - 23 = 42315103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42315113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13561 + ... + 16386.

Almost surely, 242315111 is an apocalyptic number.

42315111 is a deficient number, since it is larger than the sum of its proper divisors (19198081).

42315111 is a wasteful number, since it uses less digits than its factorization.

42315111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30110 (or 30107 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 42315111 is about 6505.0066102964. The cubic root of 42315111 is about 348.4698123399.

Adding to 42315111 its reverse (11151324), we get a palindrome (53466435).

The spelling of 42315111 in words is "forty-two million, three hundred fifteen thousand, one hundred eleven".

Divisors: 1 3 9 157 471 1413 29947 89841 269523 4701679 14105037 42315111