Search a number
-
+
28300245305 = 519297897319
BaseRepresentation
bin11010010110110100…
…110111100100111001
32201001021220102021112
4122112310313210321
5430424330322210
621000112250105
72021210054543
oct322664674471
981037812245
1028300245305
1111002829192
125599840935
1328901a33a7
1415267c8693
15b097c2d05
hex696d37939

28300245305 has 8 divisors (see below), whose sum is σ = 35747678400. Its totient is φ = 21448606896.

The previous prime is 28300245301. The next prime is 28300245359. The reversal of 28300245305 is 50354200382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28300245305 - 22 = 28300245301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28300245301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148948565 + ... + 148948754.

It is an arithmetic number, because the mean of its divisors is an integer number (4468459800).

Almost surely, 228300245305 is an apocalyptic number.

It is an amenable number.

28300245305 is a deficient number, since it is larger than the sum of its proper divisors (7447433095).

28300245305 is a wasteful number, since it uses less digits than its factorization.

28300245305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297897343.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 28300245305 its reverse (50354200382), we get a palindrome (78654445687).

The spelling of 28300245305 in words is "twenty-eight billion, three hundred million, two hundred forty-five thousand, three hundred five".

Divisors: 1 5 19 95 297897319 1489486595 5660049061 28300245305