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42302445 = 3529313137
BaseRepresentation
bin1010000101011…
…1101111101101
32221121012001020
42201113233231
541312134240
64110404353
71022364513
oct241275755
987535036
1042302445
11219734a9
12122006b9
1389c1843
1458924b3
153aa90d0
hex2857bed

42302445 has 32 divisors (see below), whose sum is σ = 72299520. Its totient is φ = 21073920.

The previous prime is 42302419. The next prime is 42302453. The reversal of 42302445 is 54420324.

It is not a de Polignac number, because 42302445 - 210 = 42301421 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11917 + ... + 15053.

It is an arithmetic number, because the mean of its divisors is an integer number (2259360).

Almost surely, 242302445 is an apocalyptic number.

It is an amenable number.

42302445 is a deficient number, since it is larger than the sum of its proper divisors (29997075).

42302445 is a wasteful number, since it uses less digits than its factorization.

42302445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 42302445 is about 6504.0329796212. The cubic root of 42302445 is about 348.4350402140.

Adding to 42302445 its reverse (54420324), we get a palindrome (96722769).

The spelling of 42302445 in words is "forty-two million, three hundred two thousand, four hundred forty-five".

Divisors: 1 3 5 15 29 31 87 93 145 155 435 465 899 2697 3137 4495 9411 13485 15685 47055 90973 97247 272919 291741 454865 486235 1364595 1458705 2820163 8460489 14100815 42302445