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42302478 = 237396581
BaseRepresentation
bin1010000101011…
…1110000001110
32221121012002110
42201113300032
541312134403
64110404450
71022364561
oct241276016
987535073
1042302478
1121973529
1212200726
1389c186a
1458924d8
153aa9103
hex2857c0e

42302478 has 16 divisors (see below), whose sum is σ = 85764816. Its totient is φ = 13907520.

The previous prime is 42302473. The next prime is 42302521. The reversal of 42302478 is 87420324.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47853 + ... + 48728.

It is an arithmetic number, because the mean of its divisors is an integer number (5360301).

Almost surely, 242302478 is an apocalyptic number.

42302478 is an abundant number, since it is smaller than the sum of its proper divisors (43462338).

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

42302478 is a wasteful number, since it uses less digits than its factorization.

42302478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96659.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 42302478 is about 6504.0355165082. The cubic root of 42302478 is about 348.4351308183.

The spelling of 42302478 in words is "forty-two million, three hundred two thousand, four hundred seventy-eight".

Divisors: 1 2 3 6 73 146 219 438 96581 193162 289743 579486 7050413 14100826 21151239 42302478