Search a number
-
+
42953085 = 3457109139
BaseRepresentation
bin1010001111011…
…0100101111101
32222211020120000
42203312211331
541443444320
64132344513
71031044440
oct243664575
988736500
1042953085
112227831a
1212475139
138b8ba36
1459c1657
153b86c90
hex28f697d

42953085 has 80 divisors (see below), whose sum is σ = 89443200. Its totient is φ = 19315584.

The previous prime is 42953069. The next prime is 42953093. The reversal of 42953085 is 58035924.

42953085 is a `hidden beast` number, since 42 + 9 + 530 + 85 = 666.

It is not a de Polignac number, because 42953085 - 24 = 42953069 is a prime.

It is a super-2 number, since 2×429530852 = 3689935022034450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 308946 + ... + 309084.

It is an arithmetic number, because the mean of its divisors is an integer number (1118040).

Almost surely, 242953085 is an apocalyptic number.

42953085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42953085 is an abundant number, since it is smaller than the sum of its proper divisors (46490115).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42953085 is a wasteful number, since it uses less digits than its factorization.

42953085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 42953085 is about 6553.8603128233. The cubic root of 42953085 is about 350.2123473319.

The spelling of 42953085 in words is "forty-two million, nine hundred fifty-three thousand, eighty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 81 105 109 135 139 189 315 327 405 417 545 567 695 763 945 973 981 1251 1635 2085 2289 2835 2919 2943 3753 3815 4865 4905 6255 6867 8757 8829 11259 11445 14595 14715 15151 18765 20601 26271 34335 43785 44145 45453 56295 61803 75755 78813 103005 106057 131355 136359 227265 309015 318171 394065 409077 530285 681795 954513 1227231 1590855 2045385 2863539 4772565 6136155 8590617 14317695 42953085