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42812693 = 7111095101
BaseRepresentation
bin1010001101010…
…0010100010101
32222120002222022
42203110110111
541430001233
64125342525
71026621230
oct243242425
988502868
1042812693
11221918a0
1212407a45
138b3cb71
145986417
153b5a398
hex28d4515

42812693 has 16 divisors (see below), whose sum is σ = 53877120. Its totient is φ = 33048000.

The previous prime is 42812669. The next prime is 42812713. The reversal of 42812693 is 39621824.

It is a cyclic number.

It is not a de Polignac number, because 42812693 - 218 = 42550549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42812093) 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 15 ways as a sum of consecutive naturals, for example, 5843 + ... + 10943.

It is an arithmetic number, because the mean of its divisors is an integer number (3367320).

Almost surely, 242812693 is an apocalyptic number.

It is an amenable number.

42812693 is a deficient number, since it is larger than the sum of its proper divisors (11064427).

42812693 is a wasteful number, since it uses less digits than its factorization.

42812693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5228.

The product of its digits is 20736, while the sum is 35.

The square root of 42812693 is about 6543.1409124365. The cubic root of 42812693 is about 349.8303749485.

The spelling of 42812693 in words is "forty-two million, eight hundred twelve thousand, six hundred ninety-three".

Divisors: 1 7 11 77 109 763 1199 5101 8393 35707 56111 392777 556009 3892063 6116099 42812693