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28595148201 = 3662632
BaseRepresentation
bin11010101000011001…
…110101010110101001
32201210211211001000000
4122220121311112221
5432030324220301
621045245133213
72031420515004
oct325031652651
981724731000
1028595148201
1111144241094
12566055a209
132909308149
141553a3253b
15b25626786
hex6a86755a9

28595148201 has 21 divisors (see below), whose sum is σ = 42879956269. Its totient is φ = 19060388316.

The previous prime is 28595148187. The next prime is 28595148227. The reversal of 28595148201 is 10284159582.

The square root of 28595148201 is 169101.

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

28595148201 is a `hidden beast` number, since 2 + 8 + 59 + 514 + 82 + 0 + 1 = 666.

It is not a de Polignac number, because 28595148201 - 27 = 28595148073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28595148301) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 4562596 + ... + 4568858.

Almost surely, 228595148201 is an apocalyptic number.

28595148201 is the 169101-st square number.

28595148201 is the 84551-st centered octagonal number.

It is an amenable number.

28595148201 is a deficient number, since it is larger than the sum of its proper divisors (14284808068).

28595148201 is an frugal number, since it uses more digits than its factorization.

28595148201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12544 (or 6266 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The spelling of 28595148201 in words is "twenty-eight billion, five hundred ninety-five million, one hundred forty-eight thousand, two hundred one".

Divisors: 1 3 9 27 81 243 729 6263 18789 56367 169101 507303 1521909 4565727 39225169 117675507 353026521 1059079563 3177238689 9531716067 28595148201