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42331465 = 511769663
BaseRepresentation
bin1010000101111…
…0110101001001
32221122122212001
42201132311021
541314101330
64111151001
71022545231
oct241366511
987578761
1042331465
1121993290
1212215461
138a01b07
14589ccc1
153ab29ca
hex285ed49

42331465 has 8 divisors (see below), whose sum is σ = 55415808. Its totient is φ = 30786480.

The previous prime is 42331463. The next prime is 42331469. The reversal of 42331465 is 56413324.

42331465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42331465 - 21 = 42331463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42331463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384777 + ... + 384886.

It is an arithmetic number, because the mean of its divisors is an integer number (6926976).

Almost surely, 242331465 is an apocalyptic number.

It is an amenable number.

42331465 is a deficient number, since it is larger than the sum of its proper divisors (13084343).

42331465 is a wasteful number, since it uses less digits than its factorization.

42331465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769679.

The product of its digits is 8640, while the sum is 28.

The square root of 42331465 is about 6506.2635206392. The cubic root of 42331465 is about 348.5146989156.

Adding to 42331465 its reverse (56413324), we get a palindrome (98744789).

The spelling of 42331465 in words is "forty-two million, three hundred thirty-one thousand, four hundred sixty-five".

Divisors: 1 5 11 55 769663 3848315 8466293 42331465