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28530045126 = 23311239920021
BaseRepresentation
bin11010100100100001…
…011111000011000110
32201122022022110101000
4122210201133003012
5431412142421001
621035001514130
72030000245062
oct324441370306
981568273330
1028530045126
11111105151a0
1256427a2946
1328c899250b
141549126aa2
15b1ea66a86
hex6a485f0c6

28530045126 has 64 divisors (see below), whose sum is σ = 69196032000. Its totient is φ = 8641432800.

The previous prime is 28530045121. The next prime is 28530045143. The reversal of 28530045126 is 62154003582.

28530045126 is a `hidden beast` number, since 285 + 300 + 4 + 51 + 26 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28530045121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1414996 + ... + 1435016.

It is an arithmetic number, because the mean of its divisors is an integer number (1081188000).

Almost surely, 228530045126 is an apocalyptic number.

28530045126 is an abundant number, since it is smaller than the sum of its proper divisors (40665986874).

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

28530045126 is a wasteful number, since it uses less digits than its factorization.

28530045126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22442 (or 22436 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 28530045126 in words is "twenty-eight billion, five hundred thirty million, forty-five thousand, one hundred twenty-six".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 198 297 594 2399 4798 7197 14394 20021 21591 26389 40042 43182 52778 60063 64773 79167 120126 129546 158334 180189 220231 237501 360378 440462 475002 540567 660693 712503 1081134 1321386 1425006 1982079 3964158 5946237 11892474 48030379 96060758 144091137 288182274 432273411 528334169 864546822 1056668338 1296820233 1585002507 2593640466 3170005014 4755007521 9510015042 14265022563 28530045126