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42705054 = 23271719937
BaseRepresentation
bin1010001011101…
…0000010011110
32222100122022200
42202322002132
541413030204
64123152330
71025662350
oct242720236
988318280
1042705054
1122118a37
12123756a6
138b02b82
1459590d0
153b38539
hex28ba09e

42705054 has 48 divisors (see below), whose sum is σ = 111971808. Its totient is φ = 11483136.

The previous prime is 42705053. The next prime is 42705079. The reversal of 42705054 is 45050724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42705053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7827 + ... + 12110.

It is an arithmetic number, because the mean of its divisors is an integer number (2332746).

Almost surely, 242705054 is an apocalyptic number.

42705054 is an abundant number, since it is smaller than the sum of its proper divisors (69266754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42705054 is a wasteful number, since it uses less digits than its factorization.

42705054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19969 (or 19966 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 42705054 is about 6534.9104048946. The cubic root of 42705054 is about 349.5369495586.

Adding to 42705054 its reverse (45050724), we get a palindrome (87755778).

The spelling of 42705054 in words is "forty-two million, seven hundred five thousand, fifty-four".

Divisors: 1 2 3 6 7 9 14 17 18 21 34 42 51 63 102 119 126 153 238 306 357 714 1071 2142 19937 39874 59811 119622 139559 179433 279118 338929 358866 418677 677858 837354 1016787 1256031 2033574 2372503 2512062 3050361 4745006 6100722 7117509 14235018 21352527 42705054