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28252802600 = 23521112842183
BaseRepresentation
bin11010010011111111…
…111000111000101000
32200220222122002010022
4122103333320320220
5430330204140400
620551255340012
72020062600611
oct322377707050
980828562108
1028252802600
1110a88a74840
125585981608
132883401c99
141520398c08
15b05550b85
hex693ff8e28

28252802600 has 48 divisors (see below), whose sum is σ = 71659386720. Its totient is φ = 10273745600.

The previous prime is 28252802597. The next prime is 28252802621. The reversal of 28252802600 is 620825282.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6418892 + ... + 6423291.

It is an arithmetic number, because the mean of its divisors is an integer number (1492903890).

Almost surely, 228252802600 is an apocalyptic number.

28252802600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28252802600 is an abundant number, since it is smaller than the sum of its proper divisors (43406584120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28252802600 is a wasteful number, since it uses less digits than its factorization.

28252802600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12842210 (or 12842201 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The spelling of 28252802600 in words is "twenty-eight billion, two hundred fifty-two million, eight hundred two thousand, six hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 200 220 275 440 550 1100 2200 12842183 25684366 51368732 64210915 102737464 128421830 141264013 256843660 282528026 321054575 513687320 565056052 642109150 706320065 1130112104 1284218300 1412640130 2568436600 2825280260 3531600325 5650560520 7063200650 14126401300 28252802600