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28302730200 = 23325215723739
BaseRepresentation
bin11010010110111110…
…010110001111011000
32201001110120122220200
4122112332112033120
5430430444331300
621000241422200
72021240144253
oct322676261730
981043518820
1028302730200
1111004176118
12559a63a960
132890863444
141526c7409a
15b09b14200
hex696f963d8

28302730200 has 72 divisors (see below), whose sum is σ = 95050008300. Its totient is φ = 7547394240.

The previous prime is 28302730171. The next prime is 28302730229. The reversal of 28302730200 is 203720382.

It is an interprime number because it is at equal distance from previous prime (28302730171) and next prime (28302730229).

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7860070 + ... + 7863669.

Almost surely, 228302730200 is an apocalyptic number.

28302730200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28302730200 is an abundant number, since it is smaller than the sum of its proper divisors (66747278100).

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

28302730200 is a wasteful number, since it uses less digits than its factorization.

28302730200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15723761 (or 15723749 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The spelling of 28302730200 in words is "twenty-eight billion, three hundred two million, seven hundred thirty thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 30 36 40 45 50 60 72 75 90 100 120 150 180 200 225 300 360 450 600 900 1800 15723739 31447478 47171217 62894956 78618695 94342434 125789912 141513651 157237390 188684868 235856085 283027302 314474780 377369736 393093475 471712170 566054604 628949560 707568255 786186950 943424340 1132109208 1179280425 1415136510 1572373900 1886848680 2358560850 2830273020 3144747800 3537841275 4717121700 5660546040 7075682550 9434243400 14151365100 28302730200