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28280624060 = 22513108771631
BaseRepresentation
bin11010010101101010…
…000001001110111100
32200222220222112222202
4122111222001032330
5430404314432220
620554131531032
72020551224003
oct322552011674
980886875882
1028280624060
1110aa2747487
125593159a78
1328890c34a0
141523d5bc3a
15b07be9275
hex695a813bc

28280624060 has 24 divisors (see below), whose sum is σ = 63957719616. Its totient is φ = 10442076480.

The previous prime is 28280624041. The next prime is 28280624131. The reversal of 28280624060 is 6042608282.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 54385556 + ... + 54386075.

It is an arithmetic number, because the mean of its divisors is an integer number (2664904984).

Almost surely, 228280624060 is an apocalyptic number.

28280624060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28280624060 is an abundant number, since it is smaller than the sum of its proper divisors (35677095556).

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

28280624060 is a wasteful number, since it uses less digits than its factorization.

28280624060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108771653 (or 108771651 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The spelling of 28280624060 in words is "twenty-eight billion, two hundred eighty million, six hundred twenty-four thousand, sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 108771631 217543262 435086524 543858155 1087716310 1414031203 2175432620 2828062406 5656124812 7070156015 14140312030 28280624060