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42739107 = 337834639
BaseRepresentation
bin1010001100001…
…0010110100011
32222102101000220
42203002112203
541420122412
64124014123
71026163545
oct243022643
988371026
1042739107
1122141584
1212391343
138b15518
145967695
153b4368c
hex28c25a3

42739107 has 16 divisors (see below), whose sum is σ = 59243520. Its totient is φ = 27382752.

The previous prime is 42739093. The next prime is 42739153. The reversal of 42739107 is 70193724.

42739107 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 42739107 - 26 = 42739043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42739007) 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, 6894 + ... + 11532.

It is an arithmetic number, because the mean of its divisors is an integer number (3702720).

Almost surely, 242739107 is an apocalyptic number.

42739107 is a deficient number, since it is larger than the sum of its proper divisors (16504413).

42739107 is a wasteful number, since it uses less digits than its factorization.

42739107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4762.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 42739107 is about 6537.5153537105. The cubic root of 42739107 is about 349.6298317686.

The spelling of 42739107 in words is "forty-two million, seven hundred thirty-nine thousand, one hundred seven".

Divisors: 1 3 37 83 111 249 3071 4639 9213 13917 171643 385037 514929 1155111 14246369 42739107