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85481208 = 23321187239
BaseRepresentation
bin1010001100001…
…01011011111000
312221211220011200
411012011123320
5133340344313
612252054200
72055402231
oct506053370
9187756150
1085481208
114428532a
1224764360
131492c1c7
14b4d2088
157787b73
hex51856f8

85481208 has 24 divisors (see below), whose sum is σ = 231511800. Its totient is φ = 28493712.

The previous prime is 85481189. The next prime is 85481233. The reversal of 85481208 is 80218458.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×854812082 = 14614073842278528, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 593548 + ... + 593691.

It is an arithmetic number, because the mean of its divisors is an integer number (9646325).

Almost surely, 285481208 is an apocalyptic number.

It is an amenable number.

85481208 is an abundant number, since it is smaller than the sum of its proper divisors (146030592).

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

85481208 is a wasteful number, since it uses less digits than its factorization.

85481208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187251 (or 1187244 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 85481208 is about 9245.6047936303. The cubic root of 85481208 is about 440.5111277795.

The spelling of 85481208 in words is "eighty-five million, four hundred eighty-one thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1187239 2374478 3561717 4748956 7123434 9497912 10685151 14246868 21370302 28493736 42740604 85481208