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42154154 = 273011011
BaseRepresentation
bin1010000011001…
…1100010101010
32221022122121222
42200303202222
541242413104
64103302042
71021206260
oct240634252
987278558
1042154154
1121882049
121214a922
13896c1b3
145854430
153a7a1be
hex28338aa

42154154 has 8 divisors (see below), whose sum is σ = 72264288. Its totient is φ = 18066060.

The previous prime is 42154153. The next prime is 42154181. The reversal of 42154154 is 45145124.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42154153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1505492 + ... + 1505519.

It is an arithmetic number, because the mean of its divisors is an integer number (9033036).

Almost surely, 242154154 is an apocalyptic number.

42154154 is a deficient number, since it is larger than the sum of its proper divisors (30110134).

42154154 is a wasteful number, since it uses less digits than its factorization.

42154154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011020.

The product of its digits is 3200, while the sum is 26.

The square root of 42154154 is about 6492.6230446561. The cubic root of 42154154 is about 348.0274177984.

Adding to 42154154 its reverse (45145124), we get a palindrome (87299278).

The spelling of 42154154 in words is "forty-two million, one hundred fifty-four thousand, one hundred fifty-four".

Divisors: 1 2 7 14 3011011 6022022 21077077 42154154