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42705010 = 254270501
BaseRepresentation
bin1010001011101…
…0000001110010
32222100122021001
42202322001302
541413030020
64123152214
71025662255
oct242720162
988318231
1042705010
11221189a7
121237566a
138b02b4a
14595909c
153b3850a
hex28ba072

42705010 has 8 divisors (see below), whose sum is σ = 76869036. Its totient is φ = 17082000.

The previous prime is 42705007. The next prime is 42705017. The reversal of 42705010 is 1050724.

It can be written as a sum of positive squares in 2 ways, for example, as 36978561 + 5726449 = 6081^2 + 2393^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42705017) 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 3 ways as a sum of consecutive naturals, for example, 2135241 + ... + 2135260.

Almost surely, 242705010 is an apocalyptic number.

42705010 is a deficient number, since it is larger than the sum of its proper divisors (34164026).

42705010 is a wasteful number, since it uses less digits than its factorization.

42705010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270508.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 42705010 is about 6534.9070383595. The cubic root of 42705010 is about 349.5368295132.

Adding to 42705010 its reverse (1050724), we get a palindrome (43755734).

The spelling of 42705010 in words is "forty-two million, seven hundred five thousand, ten".

Divisors: 1 2 5 10 4270501 8541002 21352505 42705010