Search a number
-
+
728883237641 = 1398715680067
BaseRepresentation
bin10101001101101001101…
…00111001001100001001
32120200101010101220011012
422212310310321030021
543420223102101031
61314502213213305
7103442256203306
oct12466464711411
92520333356135
10728883237641
11261132649629
12b9319631235
135396c3627c0
14273c72ca0ad
1513e5eb38b2b
hexa9b4d39309

728883237641 has 8 divisors (see below), whose sum is σ = 785030838144. Its totient is φ = 672747017040.

The previous prime is 728883237623. The next prime is 728883237647. The reversal of 728883237641 is 146732388827.

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 728883237641 - 218 = 728882975497 is a prime.

It is a super-2 number, since 2×7288832376412 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728883237647) 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, 2711711 + ... + 2968356.

It is an arithmetic number, because the mean of its divisors is an integer number (98128854768).

Almost surely, 2728883237641 is an apocalyptic number.

It is an amenable number.

728883237641 is a deficient number, since it is larger than the sum of its proper divisors (56147600503).

728883237641 is a wasteful number, since it uses less digits than its factorization.

728883237641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5689951.

The product of its digits is 21676032, while the sum is 59.

The spelling of 728883237641 in words is "seven hundred twenty-eight billion, eight hundred eighty-three million, two hundred thirty-seven thousand, six hundred forty-one".

Divisors: 1 13 9871 128323 5680067 73840871 56067941357 728883237641