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28468882800 = 2432527908023
BaseRepresentation
bin11010100000111000…
…001010110101110000
32201111001020002102200
4122200320022311300
5431301013222200
621024534543200
72025325340211
oct324070126560
981431202380
1028468882800
1111089a40016
125626207b00
1328b90c94a7
141540d65408
15b194d4800
hex6a0e0ad70

28468882800 has 90 divisors (see below), whose sum is σ = 98794943832. Its totient is φ = 7591701120.

The previous prime is 28468882781. The next prime is 28468882801. The reversal of 28468882800 is 828886482.

28468882800 is a `hidden beast` number, since 28 + 468 + 8 + 82 + 80 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (90).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28468882801) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3950412 + ... + 3957611.

Almost surely, 228468882800 is an apocalyptic number.

28468882800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28468882800 is an abundant number, since it is smaller than the sum of its proper divisors (70326061032).

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

28468882800 is a wasteful number, since it uses less digits than its factorization.

28468882800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7908047 (or 7908033 counting only the distinct ones).

The product of its (nonzero) digits is 3145728, while the sum is 54.

The spelling of 28468882800 in words is "twenty-eight billion, four hundred sixty-eight million, eight hundred eighty-two thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 36 40 45 48 50 60 72 75 80 90 100 120 144 150 180 200 225 240 300 360 400 450 600 720 900 1200 1800 3600 7908023 15816046 23724069 31632092 39540115 47448138 63264184 71172207 79080230 94896276 118620345 126528368 142344414 158160460 189792552 197700575 237240690 284688828 316320920 355861035 379585104 395401150 474481380 569377656 593101725 632641840 711722070 790802300 948962760 1138755312 1186203450 1423444140 1581604600 1779305175 1897925520 2372406900 2846888280 3163209200 3558610350 4744813800 5693776560 7117220700 9489627600 14234441400 28468882800