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28643383024760 = 235732087710133
BaseRepresentation
bin1101000001101000011101…
…01010111001110001111000
310202102021120121111222001002
412200310032222321301320
512223243122023243020
6140530331041144132
76014262506354000
oct640641652716170
9122367517458032
1028643383024760
119143654a93439
12326734302b048
1312ca0a074903a
147104c077b000
1534a130653975
hex1a0d0eab9c78

28643383024760 has 64 divisors (see below), whose sum is σ = 75157564824000. Its totient is φ = 9820588460928.

The previous prime is 28643383024759. The next prime is 28643383024771. The reversal of 28643383024760 is 6742038334682.

It is a super-2 number, since 2×286433830247602 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a junction number, because it is equal to n+sod(n) for n = 28643383024696 and 28643383024705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1043841347 + ... + 1043868786.

It is an arithmetic number, because the mean of its divisors is an integer number (1174336950375).

Almost surely, 228643383024760 is an apocalyptic number.

28643383024760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28643383024760 is an abundant number, since it is smaller than the sum of its proper divisors (46514181799240).

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

28643383024760 is a wasteful number, since it uses less digits than its factorization.

28643383024760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087710165 (or 2087710147 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 56.

The spelling of 28643383024760 in words is "twenty-eight trillion, six hundred forty-three billion, three hundred eighty-three million, twenty-four thousand, seven hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 140 196 245 280 343 392 490 686 980 1372 1715 1960 2744 3430 6860 13720 2087710133 4175420266 8350840532 10438550665 14613970931 16701681064 20877101330 29227941862 41754202660 58455883724 73069854655 83508405320 102297796517 116911767448 146139709310 204595593034 292279418620 409191186068 511488982585 584558837240 716084575619 818382372136 1022977965170 1432169151238 2045955930340 2864338302476 3580422878095 4091911860680 5728676604952 7160845756190 14321691512380 28643383024760