Search a number
-
+
53018105 = 572367983
BaseRepresentation
bin1100101000111…
…1110111111001
310200202121011112
43022033313321
5102033034410
65132210105
71212434510
oct312176771
9120677145
1053018105
1127a22318
1215909935
13aca407a
147081677
1549c4105
hex328fdf9

53018105 has 32 divisors (see below), whose sum is σ = 77082624. Its totient is φ = 34220736.

The previous prime is 53018093. The next prime is 53018107. The reversal of 53018105 is 50181035.

53018105 = T1205 + T1206 + ... + T1273.

It is a cyclic number.

It is not a de Polignac number, because 53018105 - 220 = 51969529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53018107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53444 + ... + 54426.

It is an arithmetic number, because the mean of its divisors is an integer number (2408832).

Almost surely, 253018105 is an apocalyptic number.

It is an amenable number.

53018105 is a deficient number, since it is larger than the sum of its proper divisors (24064519).

53018105 is a wasteful number, since it uses less digits than its factorization.

53018105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 53018105 is about 7281.3532396114. The cubic root of 53018105 is about 375.6713425989.

The spelling of 53018105 in words is "fifty-three million, eighteen thousand, one hundred five".

Divisors: 1 5 7 23 35 67 115 161 335 469 805 983 1541 2345 4915 6881 7705 10787 22609 34405 53935 65861 113045 158263 329305 461027 791315 1514803 2305135 7574015 10603621 53018105