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42234155 = 517947189
BaseRepresentation
bin1010000100011…
…1000100101011
32221110201100222
42201013010223
541302443110
64105120255
71021661435
oct241070453
987421328
1042234155
1121927167
121218908b
138999732
145875655
153a93c55
hex284712b

42234155 has 8 divisors (see below), whose sum is σ = 50965200. Its totient is φ = 33597856.

The previous prime is 42234151. The next prime is 42234161. The reversal of 42234155 is 55143224.

It is a happy number.

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 42234155 - 22 = 42234151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42234151) 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 7 ways as a sum of consecutive naturals, for example, 22700 + ... + 24489.

It is an arithmetic number, because the mean of its divisors is an integer number (6370650).

Almost surely, 242234155 is an apocalyptic number.

42234155 is a deficient number, since it is larger than the sum of its proper divisors (8731045).

42234155 is a wasteful number, since it uses less digits than its factorization.

42234155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47373.

The product of its digits is 4800, while the sum is 26.

The square root of 42234155 is about 6498.7810395489. The cubic root of 42234155 is about 348.2474431417.

Adding to 42234155 its reverse (55143224), we get a palindrome (97377379).

The spelling of 42234155 in words is "forty-two million, two hundred thirty-four thousand, one hundred fifty-five".

Divisors: 1 5 179 895 47189 235945 8446831 42234155