Search a number
-
+
38720535 = 3572139379
BaseRepresentation
bin1001001110110…
…1010000010111
32200212012120220
42103231100113
534403024120
63501525423
7650055600
oct223552027
980765526
1038720535
111a947347
1210b73873
138039379
1451dcda7
1535ecb40
hex24ed417

38720535 has 48 divisors (see below), whose sum is σ = 72777600. Its totient is φ = 17527104.

The previous prime is 38720501. The next prime is 38720551. The reversal of 38720535 is 53502783.

38720535 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38720535 - 211 = 38718487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38720496 and 38720505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101976 + ... + 102354.

It is an arithmetic number, because the mean of its divisors is an integer number (1516200).

Almost surely, 238720535 is an apocalyptic number.

38720535 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

38720535 is a deficient number, since it is larger than the sum of its proper divisors (34057065).

38720535 is a wasteful number, since it uses less digits than its factorization.

38720535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540 (or 533 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 38720535 is about 6222.5826631713. The cubic root of 38720535 is about 338.3091804663.

The spelling of 38720535 in words is "thirty-eight million, seven hundred twenty thousand, five hundred thirty-five".

Divisors: 1 3 5 7 15 21 35 49 105 139 147 245 379 417 695 735 973 1137 1895 2085 2653 2919 4865 5685 6811 7959 13265 14595 18571 20433 34055 39795 52681 55713 92855 102165 158043 263405 278565 368767 790215 1106301 1843835 2581369 5531505 7744107 12906845 38720535