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87327358740 = 2234553905777
BaseRepresentation
bin101000101010100011…
…1011011111100010100
322100101222211110120000
41101111013123330110
52412321300434430
6104041224211300
76211024205346
oct1212507337424
9270358743500
1087327358740
1134043021166
1214b11909b30
1383091c754b
144325d8b296
1524118ece60
hex14551dbf14

87327358740 has 60 divisors (see below), whose sum is σ = 273949163796. Its totient is φ = 23287295232.

The previous prime is 87327358711. The next prime is 87327358777. The reversal of 87327358740 is 4785372378.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50156289936 + 37171068804 = 223956^2 + 192798^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26951269 + ... + 26954508.

Almost surely, 287327358740 is an apocalyptic number.

It is an amenable number.

87327358740 is an abundant number, since it is smaller than the sum of its proper divisors (186621805056).

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

87327358740 is a wasteful number, since it uses less digits than its factorization.

87327358740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53905798 (or 53905787 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 54.

The spelling of 87327358740 in words is "eighty-seven billion, three hundred twenty-seven million, three hundred fifty-eight thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 270 324 405 540 810 1620 53905777 107811554 161717331 215623108 269528885 323434662 485151993 539057770 646869324 808586655 970303986 1078115540 1455455979 1617173310 1940607972 2425759965 2910911958 3234346620 4366367937 4851519930 5821823916 7277279895 8732735874 9703039860 14554559790 17465471748 21831839685 29109119580 43663679370 87327358740