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87099569228 = 2274771879209
BaseRepresentation
bin101000100011110001…
…0011111010001001100
322022211010012120002102
41101013202133101030
52411334442203403
6104002450014232
76202260060110
oct1210742372114
9268733176072
1087099569228
1133a36488571
1214a69577378
1382a0c60459
144303a13740
1523eb904b88
hex144789f44c

87099569228 has 48 divisors (see below), whose sum is σ = 177949578240. Its totient is φ = 36525115776.

The previous prime is 87099569149. The next prime is 87099569311. The reversal of 87099569228 is 82296599078.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9453488 + ... + 9462696.

It is an arithmetic number, because the mean of its divisors is an integer number (3707282880).

Almost surely, 287099569228 is an apocalyptic number.

It is an amenable number.

87099569228 is an abundant number, since it is smaller than the sum of its proper divisors (90850009012).

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

87099569228 is a wasteful number, since it uses less digits than its factorization.

87099569228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16454 (or 16452 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 65.

The spelling of 87099569228 in words is "eighty-seven billion, ninety-nine million, five hundred sixty-nine thousand, two hundred twenty-eight".

Divisors: 1 2 4 7 14 28 47 94 188 329 658 1316 7187 9209 14374 18418 28748 36836 50309 64463 100618 128926 201236 257852 337789 432823 675578 865646 1351156 1731292 2364523 3029761 4729046 6059522 9458092 12119044 66185083 132370166 264740332 463295581 926591162 1853182324 3110698901 6221397802 12442795604 21774892307 43549784614 87099569228