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42110045 = 546118269
BaseRepresentation
bin1010000010100…
…0110001011101
32221020102010022
42200220301131
541240010140
64102321525
71020633545
oct240506135
987212108
1042110045
112185199a
12121292a5
1389550b3
145842325
153a6c0b5
hex2828c5d

42110045 has 8 divisors (see below), whose sum is σ = 50644440. Its totient is φ = 33613120.

The previous prime is 42110039. The next prime is 42110053. The reversal of 42110045 is 54001124.

It can be written as a sum of positive squares in 4 ways, for example, as 4826809 + 37283236 = 2197^2 + 6106^2 .

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

It is not a de Polignac number, because 42110045 - 26 = 42109981 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 6830 + ... + 11439.

It is an arithmetic number, because the mean of its divisors is an integer number (6330555).

Almost surely, 242110045 is an apocalyptic number.

It is an amenable number.

42110045 is a deficient number, since it is larger than the sum of its proper divisors (8534395).

42110045 is a wasteful number, since it uses less digits than its factorization.

42110045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18735.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 42110045 is about 6489.2253004500. The cubic root of 42110045 is about 347.9059865168.

Adding to 42110045 its reverse (54001124), we get a palindrome (96111169).

The spelling of 42110045 in words is "forty-two million, one hundred ten thousand, forty-five".

Divisors: 1 5 461 2305 18269 91345 8422009 42110045