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85900216 = 23192324571
BaseRepresentation
bin1010001111010…
…11101110111000
312222122011221111
411013223232320
5133442301331
612305050104
72062065643
oct507535670
9188564844
1085900216
1144541116
1224926934
1314a47b3c
14b5a0a5a
15781bdb1
hex51ebbb8

85900216 has 32 divisors (see below), whose sum is σ = 176918400. Its totient is φ = 38918880.

The previous prime is 85900211. The next prime is 85900229. The reversal of 85900216 is 61200958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85900211) 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, 8790 + ... + 15781.

It is an arithmetic number, because the mean of its divisors is an integer number (5528700).

Almost surely, 285900216 is an apocalyptic number.

It is an amenable number.

85900216 is an abundant number, since it is smaller than the sum of its proper divisors (91018184).

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

85900216 is a wasteful number, since it uses less digits than its factorization.

85900216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24619 (or 24615 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 85900216 is about 9268.2369412958. The cubic root of 85900216 is about 441.2297142565.

The spelling of 85900216 in words is "eighty-five million, nine hundred thousand, two hundred sixteen".

Divisors: 1 2 4 8 19 23 38 46 76 92 152 184 437 874 1748 3496 24571 49142 98284 196568 466849 565133 933698 1130266 1867396 2260532 3734792 4521064 10737527 21475054 42950108 85900216