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28966372480 = 275192382103
BaseRepresentation
bin11010111110100001…
…111100010010000000
32202202201100011222101
4122332201330102000
5433310342404410
621150145520144
72043546050353
oct327641742200
982681304871
1028966372480
1111314842411
125744943054
1329681b2a96
14158b06629a
15b48003d3a
hex6be87c480

28966372480 has 64 divisors (see below), whose sum is σ = 72892382400. Its totient is φ = 10976726016.

The previous prime is 28966372469. The next prime is 28966372483. The reversal of 28966372480 is 8427366982.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (28966372483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1178892 + ... + 1203211.

It is an arithmetic number, because the mean of its divisors is an integer number (1138943475).

Almost surely, 228966372480 is an apocalyptic number.

28966372480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28966372480 is an abundant number, since it is smaller than the sum of its proper divisors (43926009920).

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

28966372480 is a wasteful number, since it uses less digits than its factorization.

28966372480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382141 (or 2382129 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 28966372480 in words is "twenty-eight billion, nine hundred sixty-six million, three hundred seventy-two thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 19 20 32 38 40 64 76 80 95 128 152 160 190 304 320 380 608 640 760 1216 1520 2432 3040 6080 12160 2382103 4764206 9528412 11910515 19056824 23821030 38113648 45259957 47642060 76227296 90519914 95284120 152454592 181039828 190568240 226299785 304909184 362079656 381136480 452599570 724159312 762272960 905199140 1448318624 1524545920 1810398280 2896637248 3620796560 5793274496 7241593120 14483186240 28966372480