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42677765 = 5132328547
BaseRepresentation
bin1010001011001…
…1011000000101
32222022020212222
42202303120011
541411142030
64122422125
71025516654
oct242633005
988266788
1042677765
11220aa489
1212361945
138ac3620
14594d19b
153b303e5
hex28b3605

42677765 has 16 divisors (see below), whose sum is σ = 57552768. Its totient is φ = 30144576.

The previous prime is 42677759. The next prime is 42677777. The reversal of 42677765 is 56777624.

It is a cyclic number.

It is not a de Polignac number, because 42677765 - 210 = 42676741 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 12779 + ... + 15768.

It is an arithmetic number, because the mean of its divisors is an integer number (3597048).

Almost surely, 242677765 is an apocalyptic number.

It is an amenable number.

42677765 is a deficient number, since it is larger than the sum of its proper divisors (14875003).

42677765 is a wasteful number, since it uses less digits than its factorization.

42677765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28588.

The product of its digits is 493920, while the sum is 44.

The square root of 42677765 is about 6532.8221313610. The cubic root of 42677765 is about 349.4624810404.

The spelling of 42677765 in words is "forty-two million, six hundred seventy-seven thousand, seven hundred sixty-five".

Divisors: 1 5 13 23 65 115 299 1495 28547 142735 371111 656581 1855555 3282905 8535553 42677765