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28028922024 = 23319726322541
BaseRepresentation
bin11010000110101001…
…110110100010101000
32200100101100202201010
4122012221312202220
5424400401001044
620513141023520
72011403622555
oct320651664250
980311322633
1028028922024
1110983660a74
1255229b4ba0
132848c0617c
1414dc75ba2c
15ae0a7abb9
hex686a768a8

28028922024 has 64 divisors (see below), whose sum is σ = 70698925440. Its totient is φ = 9259792640.

The previous prime is 28028922011. The next prime is 28028922043. The reversal of 28028922024 is 42022982082.

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, 1232194 + ... + 1254734.

It is an arithmetic number, because the mean of its divisors is an integer number (1104670710).

Almost surely, 228028922024 is an apocalyptic number.

28028922024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28028922024 is an abundant number, since it is smaller than the sum of its proper divisors (42670003416).

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

28028922024 is a wasteful number, since it uses less digits than its factorization.

28028922024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23010 (or 23006 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 28028922024 in words is "twenty-eight billion, twenty-eight million, nine hundred twenty-two thousand, twenty-four".

Divisors: 1 2 3 4 6 8 12 24 197 263 394 526 591 788 789 1052 1182 1576 1578 2104 2364 3156 4728 6312 22541 45082 51811 67623 90164 103622 135246 155433 180328 207244 270492 310866 414488 540984 621732 1243464 4440577 5928283 8881154 11856566 13321731 17762308 17784849 23713132 26643462 35524616 35569698 47426264 53286924 71139396 106573848 142278792 1167871751 2335743502 3503615253 4671487004 7007230506 9342974008 14014461012 28028922024