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28947371350 = 2521794136191
BaseRepresentation
bin11010111101011001…
…011101010101010110
32202201101120211022211
4122331121131111112
5433241011340400
621144230344034
72043225411442
oct327531352526
982641524284
1028947371350
11113050445a7
12573a4bb01a
13296428c201
14158871b822
15b464eddba
hex6bd65d556

28947371350 has 48 divisors (see below), whose sum is σ = 57071454336. Its totient is φ = 10885952000.

The previous prime is 28947371317. The next prime is 28947371377. The reversal of 28947371350 is 5317374982.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28947371294 and 28947371303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 781755 + ... + 817945.

It is an arithmetic number, because the mean of its divisors is an integer number (1188988632).

Almost surely, 228947371350 is an apocalyptic number.

28947371350 is a deficient number, since it is larger than the sum of its proper divisors (28124082986).

28947371350 is a wasteful number, since it uses less digits than its factorization.

28947371350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37161 (or 37156 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 28947371350 in words is "twenty-eight billion, nine hundred forty-seven million, three hundred seventy-one thousand, three hundred fifty".

Divisors: 1 2 5 10 17 25 34 50 85 170 425 850 941 1882 4705 9410 15997 23525 31994 36191 47050 72382 79985 159970 180955 361910 399925 615247 799850 904775 1230494 1809550 3076235 6152470 15381175 30762350 34055731 68111462 170278655 340557310 578947427 851393275 1157894854 1702786550 2894737135 5789474270 14473685675 28947371350