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87561600011 = 5691022315053
BaseRepresentation
bin101000110001100010…
…0111111110000001011
322101000022121011011122
41101203010333300023
52413311232200021
6104120352545455
76216600214454
oct1214304776013
9271008534148
1087561600011
1134153271096
1214b7825228b
1383458b0152
14434912412b
15242726cbab
hex146313fc0b

87561600011 has 8 divisors (see below), whose sum is σ = 87729894720. Its totient is φ = 87393356992.

The previous prime is 87561599987. The next prime is 87561600013. The reversal of 87561600011 is 11000616578.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87561600011 - 230 = 86487858187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87561600013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5809361 + ... + 5824413.

It is an arithmetic number, because the mean of its divisors is an integer number (10966236840).

Almost surely, 287561600011 is an apocalyptic number.

87561600011 is a deficient number, since it is larger than the sum of its proper divisors (168294709).

87561600011 is a wasteful number, since it uses less digits than its factorization.

87561600011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25845.

The product of its (nonzero) digits is 10080, while the sum is 35.

The spelling of 87561600011 in words is "eighty-seven billion, five hundred sixty-one million, six hundred thousand, eleven".

Divisors: 1 569 10223 15053 5816887 8565157 153886819 87561600011