Search a number
-
+
52305478 = 289457643
BaseRepresentation
bin1100011110000…
…1111001000110
310122102101121221
43013201321012
5101342233403
65105030554
71203406051
oct307417106
9118371557
1052305478
1127585975
121562545a
13aab48b4
146d37a98
1548d2dbd
hex31e1e46

52305478 has 16 divisors (see below), whose sum is σ = 79637040. Its totient is φ = 25762176.

The previous prime is 52305467. The next prime is 52305479. The reversal of 52305478 is 87450325.

It is a happy number.

52305478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52305479) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 81025 + ... + 81667.

It is an arithmetic number, because the mean of its divisors is an integer number (4977315).

Almost surely, 252305478 is an apocalyptic number.

52305478 is a deficient number, since it is larger than the sum of its proper divisors (27331562).

52305478 is a wasteful number, since it uses less digits than its factorization.

52305478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 52305478 is about 7232.2526228002. The cubic root of 52305478 is about 373.9805865603.

The spelling of 52305478 in words is "fifty-two million, three hundred five thousand, four hundred seventy-eight".

Divisors: 1 2 89 178 457 643 914 1286 40673 57227 81346 114454 293851 587702 26152739 52305478