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87729260 = 2254793329
BaseRepresentation
bin1010011101010…
…10010001101100
320010002002220212
411032222101230
5134424314020
612412201552
72113454303
oct516522154
9203062825
1087729260
1145580323
12254692b8
1315238508
14b91943a
157a7dcc5
hex53aa46c

87729260 has 24 divisors (see below), whose sum is σ = 188153280. Its totient is φ = 34344704.

The previous prime is 87729253. The next prime is 87729281. The reversal of 87729260 is 6292778.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45725 + ... + 47604.

It is an arithmetic number, because the mean of its divisors is an integer number (7839720).

Almost surely, 287729260 is an apocalyptic number.

It is an amenable number.

87729260 is an abundant number, since it is smaller than the sum of its proper divisors (100424020).

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

87729260 is a wasteful number, since it uses less digits than its factorization.

87729260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93385 (or 93383 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 87729260 is about 9366.3899128747. The cubic root of 87729260 is about 444.3393977199.

The spelling of 87729260 in words is "eighty-seven million, seven hundred twenty-nine thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 93329 186658 373316 466645 933290 1866580 4386463 8772926 17545852 21932315 43864630 87729260