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28537007041 = 1721925232
BaseRepresentation
bin11010100100111100…
…000010101111000001
32201122210102011022201
4122210330002233001
5431420433211131
621035411033201
72030113362154
oct324474025701
981583364281
1028537007041
111111443a844
125644b9b801
1328ca25c2aa
14154a019c9b
15b2048e761
hex6a4f02bc1

28537007041 has 27 divisors (see below), whose sum is σ = 32055157251. Its totient is φ = 25396110144.

The previous prime is 28537007021. The next prime is 28537007047. The reversal of 28537007041 is 14070073582.

The square root of 28537007041 is 168929.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 22217393025 + 6319614016 = 149055^2 + 79496^2 .

It is not a de Polignac number, because 28537007041 - 215 = 28536974273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28537007047) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 54563806 + ... + 54564328.

Almost surely, 228537007041 is an apocalyptic number.

28537007041 is the 168929-th square number.

28537007041 is the 84465-th centered octagonal number.

It is an amenable number.

28537007041 is a deficient number, since it is larger than the sum of its proper divisors (3518150210).

28537007041 is an frugal number, since it uses more digits than its factorization.

28537007041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 28537007041 in words is "twenty-eight billion, five hundred thirty-seven million, seven thousand, forty-one".

Divisors: 1 17 19 289 323 361 523 5491 6137 8891 9937 104329 151147 168929 188803 273529 2871793 3209651 4649993 5197051 54564067 79049881 88349867 98743969 1501947739 1678647473 28537007041