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42187354 = 2116728621
BaseRepresentation
bin1010000011101…
…1101001011010
32221101100011121
42200323221122
541244443404
64104115454
71021405126
oct240735132
987340147
1042187354
11218a4a90
1212165b8a
138981341
145862586
153a84e54
hex283ba5a

42187354 has 16 divisors (see below), whose sum is σ = 70066656. Its totient is φ = 18889200.

The previous prime is 42187339. The next prime is 42187361. The reversal of 42187354 is 45378124.

42187354 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 12837 + ... + 15784.

It is an arithmetic number, because the mean of its divisors is an integer number (4379166).

Almost surely, 242187354 is an apocalyptic number.

42187354 is a deficient number, since it is larger than the sum of its proper divisors (27879302).

42187354 is a wasteful number, since it uses less digits than its factorization.

42187354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28701.

The product of its digits is 26880, while the sum is 34.

The square root of 42187354 is about 6495.1792892883. The cubic root of 42187354 is about 348.1187609371.

The spelling of 42187354 in words is "forty-two million, one hundred eighty-seven thousand, three hundred fifty-four".

Divisors: 1 2 11 22 67 134 737 1474 28621 57242 314831 629662 1917607 3835214 21093677 42187354