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42118744 = 2319277097
BaseRepresentation
bin1010000010101…
…0111001011000
32221020212001111
42200222321120
541240244434
64102430104
71021001113
oct240527130
987225044
1042118744
1121858488
1212132334
138959045
14584557a
153a6e964
hex282ae58

42118744 has 16 divisors (see below), whose sum is σ = 83129400. Its totient is φ = 19950912.

The previous prime is 42118733. The next prime is 42118751. The reversal of 42118744 is 44781124.

It is a happy number.

It is a super-2 number, since 2×421187442 = 3547977192275072, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 138397 + ... + 138700.

Almost surely, 242118744 is an apocalyptic number.

It is an amenable number.

42118744 is a deficient number, since it is larger than the sum of its proper divisors (41010656).

42118744 is a wasteful number, since it uses less digits than its factorization.

42118744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277122 (or 277118 counting only the distinct ones).

The product of its digits is 7168, while the sum is 31.

The square root of 42118744 is about 6489.8955307462. The cubic root of 42118744 is about 347.9299414172.

Adding to 42118744 its reverse (44781124), we get a palindrome (86899868).

The spelling of 42118744 in words is "forty-two million, one hundred eighteen thousand, seven hundred forty-four".

Divisors: 1 2 4 8 19 38 76 152 277097 554194 1108388 2216776 5264843 10529686 21059372 42118744