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87705060 = 22351678753
BaseRepresentation
bin1010011101001…
…00010111100100
320010000212201120
411032210113210
5134423030220
612411453540
72113323612
oct516442744
9203025646
1087705060
1145564123
12254572b0
131522a4b1
14b9106b2
157a76a40
hex53a45e4

87705060 has 48 divisors (see below), whose sum is σ = 247072896. Its totient is φ = 23245312.

The previous prime is 87705053. The next prime is 87705061. The reversal of 87705060 is 6050778.

It is not an unprimeable number, because it can be changed into a prime (87705061) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5644 + ... + 14396.

It is an arithmetic number, because the mean of its divisors is an integer number (5147352).

Almost surely, 287705060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87705060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123536448).

87705060 is an abundant number, since it is smaller than the sum of its proper divisors (159367836).

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

87705060 is a wasteful number, since it uses less digits than its factorization.

87705060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8932 (or 8930 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 87705060 is about 9365.0979706568. The cubic root of 87705060 is about 444.2985371514.

The spelling of 87705060 in words is "eighty-seven million, seven hundred five thousand, sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 167 334 501 668 835 1002 1670 2004 2505 3340 5010 8753 10020 17506 26259 35012 43765 52518 87530 105036 131295 175060 262590 525180 1461751 2923502 4385253 5847004 7308755 8770506 14617510 17541012 21926265 29235020 43852530 87705060