Search a number
-
+
28800133061 = 75377628391
BaseRepresentation
bin11010110100100111…
…110010011111000101
32202100010112100100212
4122310213302133011
5432440313224221
621121450445205
72036460043340
oct326447623705
982303470325
1028800133061
1111239a19267
1256b9133805
13293c91936b
141572d51457
15b38617b5b
hex6b49f27c5

28800133061 has 8 divisors (see below), whose sum is σ = 33535465344. Its totient is φ = 24220057680.

The previous prime is 28800133057. The next prime is 28800133097. The reversal of 28800133061 is 16033100882.

It is a happy number.

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

It is not a de Polignac number, because 28800133061 - 22 = 28800133057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28800136061) 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, 38813825 + ... + 38814566.

It is an arithmetic number, because the mean of its divisors is an integer number (4191933168).

Almost surely, 228800133061 is an apocalyptic number.

It is an amenable number.

28800133061 is a deficient number, since it is larger than the sum of its proper divisors (4735332283).

28800133061 is an equidigital number, since it uses as much as digits as its factorization.

28800133061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77628451.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 28800133061 in words is "twenty-eight billion, eight hundred million, one hundred thirty-three thousand, sixty-one".

Divisors: 1 7 53 371 77628391 543398737 4114304723 28800133061