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28606000380 = 22351277373349
BaseRepresentation
bin11010101001000011…
…001110110011111100
32201211121020101101120
4122221003032303330
5432041114003010
621050313510540
72031611664006
oct325103166374
981747211346
1028606000380
111114a383531
125664112450
13290b637859
141555259376
15b2656be70
hex6a90cecfc

28606000380 has 48 divisors (see below), whose sum is σ = 80159738400. Its totient is φ = 7622272768.

The previous prime is 28606000363. The next prime is 28606000399. The reversal of 28606000380 is 8300060682.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110055 + ... + 263294.

It is an arithmetic number, because the mean of its divisors is an integer number (1669994550).

Almost surely, 228606000380 is an apocalyptic number.

28606000380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28606000380 is an abundant number, since it is smaller than the sum of its proper divisors (51553738020).

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

28606000380 is a wasteful number, since it uses less digits than its factorization.

28606000380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374638 (or 374636 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 28606000380 in words is "twenty-eight billion, six hundred six million, three hundred eighty", and thus it is an aban number.

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1277 2554 3831 5108 6385 7662 12770 15324 19155 25540 38310 76620 373349 746698 1120047 1493396 1866745 2240094 3733490 4480188 5600235 7466980 11200470 22400940 476766673 953533346 1430300019 1907066692 2383833365 2860600038 4767666730 5721200076 7151500095 9535333460 14303000190 28606000380