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28529600005 = 5171917665387
BaseRepresentation
bin11010100100011111…
…110010011000000101
32201122021110211210001
4122210133302120011
5431412034200010
621034544201301
72026663412254
oct324437623005
981567424701
1028529600005
1111110240825
125642609231
1328c8867a2a
14154904c79b
15b1e9c9c3a
hex6a47f2605

28529600005 has 16 divisors (see below), whose sum is σ = 38157238080. Its totient is φ = 20350524672.

The previous prime is 28529599997. The next prime is 28529600009. The reversal of 28529600005 is 50000692582.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28529600005 - 23 = 28529599997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28529600009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8831079 + ... + 8834308.

It is an arithmetic number, because the mean of its divisors is an integer number (2384827380).

Almost surely, 228529600005 is an apocalyptic number.

It is an amenable number.

28529600005 is a deficient number, since it is larger than the sum of its proper divisors (9627638075).

28529600005 is a wasteful number, since it uses less digits than its factorization.

28529600005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17665428.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 28529600005 in words is "twenty-eight billion, five hundred twenty-nine million, six hundred thousand, five".

Divisors: 1 5 17 19 85 95 323 1615 17665387 88326935 300311579 335642353 1501557895 1678211765 5705920001 28529600005