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86895605209 = 731400440577
BaseRepresentation
bin101000011101101100…
…0011011010111011001
322022021220102010001111
41100323120123113121
52410430233331314
6103530322220321
76164232312610
oct1207330332731
9268256363044
1086895605209
1133941338366
1214a111b46a1
13826a918a9a
1442c48bc877
1523d8a65ec4
hex143b61b5d9

86895605209 has 8 divisors (see below), whose sum is σ = 102512787968. Its totient is φ = 72079303680.

The previous prime is 86895605189. The next prime is 86895605219. The reversal of 86895605209 is 90250659868.

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 86895605209 - 213 = 86895597017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86895605219) 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, 200220072 + ... + 200220505.

It is an arithmetic number, because the mean of its divisors is an integer number (12814098496).

Almost surely, 286895605209 is an apocalyptic number.

It is an amenable number.

86895605209 is a deficient number, since it is larger than the sum of its proper divisors (15617182759).

86895605209 is a wasteful number, since it uses less digits than its factorization.

86895605209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400440615.

The product of its (nonzero) digits is 9331200, while the sum is 58.

The spelling of 86895605209 in words is "eighty-six billion, eight hundred ninety-five million, six hundred five thousand, two hundred nine".

Divisors: 1 7 31 217 400440577 2803084039 12413657887 86895605209