Search a number
-
+
385211740 = 22567328619
BaseRepresentation
bin10110111101011…
…101110101011100
3222211211210011111
4112331131311130
51242103233430
6102120231404
712355150204
oct2675356534
9884753144
10385211740
11188495311
12a900b564
1361a64454
1439235404
1523c41c2a
hex16f5dd5c

385211740 has 24 divisors (see below), whose sum is σ = 810174960. Its totient is φ = 153850368.

The previous prime is 385211713. The next prime is 385211741. The reversal of 385211740 is 47112583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385211741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 850 + ... + 27769.

It is an arithmetic number, because the mean of its divisors is an integer number (33757290).

Almost surely, 2385211740 is an apocalyptic number.

It is an amenable number.

385211740 is an abundant number, since it is smaller than the sum of its proper divisors (424963220).

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

385211740 is a wasteful number, since it uses less digits than its factorization.

385211740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29301 (or 29299 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 385211740 is about 19626.8117635035. The cubic root of 385211740 is about 727.6119752221.

The spelling of 385211740 in words is "three hundred eighty-five million, two hundred eleven thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 673 1346 2692 3365 6730 13460 28619 57238 114476 143095 286190 572380 19260587 38521174 77042348 96302935 192605870 385211740