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42302479 = 173439557
BaseRepresentation
bin1010000101011…
…1110000001111
32221121012002111
42201113300033
541312134404
64110404451
71022364562
oct241276017
987535074
1042302479
112197352a
1212200727
1389c186b
1458924d9
153aa9104
hex2857c0f

42302479 has 8 divisors (see below), whose sum is σ = 42720480. Its totient is φ = 41886816.

The previous prime is 42302473. The next prime is 42302521. The reversal of 42302479 is 97420324.

42302479 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 not a de Polignac number, because 42302479 - 23 = 42302471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42302479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42302471) by changing a digit.

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, 75669 + ... + 76225.

It is an arithmetic number, because the mean of its divisors is an integer number (5340060).

It is the magic constant of a 439 × 439 magic square.

Almost surely, 242302479 is an apocalyptic number.

42302479 is a deficient number, since it is larger than the sum of its proper divisors (418001).

42302479 is a wasteful number, since it uses less digits than its factorization.

42302479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 42302479 is about 6504.0355933835. The cubic root of 42302479 is about 348.4351335639.

The spelling of 42302479 in words is "forty-two million, three hundred two thousand, four hundred seventy-nine".

Divisors: 1 173 439 557 75947 96361 244523 42302479