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42610405 = 512767103
BaseRepresentation
bin1010001010001…
…0111011100101
32222011211111011
42202202323211
541402013110
64121142221
71025116405
oct242427345
988154434
1042610405
1122063912
121232a971
138a9ba76
145932805
153b1a48a
hex28a2ee5

42610405 has 8 divisors (see below), whose sum is σ = 51535872. Its totient is φ = 33819408.

The previous prime is 42610387. The next prime is 42610411. The reversal of 42610405 is 50401624.

42610405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42610405 is a prime.

It is a super-2 number, since 2×426104052 = 3631293228528050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32917 + ... + 34186.

It is an arithmetic number, because the mean of its divisors is an integer number (6441984).

Almost surely, 242610405 is an apocalyptic number.

It is an amenable number.

42610405 is a deficient number, since it is larger than the sum of its proper divisors (8925467).

42610405 is a wasteful number, since it uses less digits than its factorization.

42610405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67235.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 42610405 is about 6527.6645900352. The cubic root of 42610405 is about 349.2785274197.

The spelling of 42610405 in words is "forty-two million, six hundred ten thousand, four hundred five".

Divisors: 1 5 127 635 67103 335515 8522081 42610405