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85247867752 = 2317837552079
BaseRepresentation
bin100111101100100101…
…0110011101101101000
322011001001220101012021
41033121022303231220
52344041423232002
6103055021354224
76105343630405
oct1173112635550
9264031811167
1085247867752
1133176220873
1214631408974
13806743a6c8
1441a9b1d2ac
15233e087737
hex13d92b3b68

85247867752 has 32 divisors (see below), whose sum is σ = 171281174400. Its totient is φ = 39633305344.

The previous prime is 85247867729. The next prime is 85247867753. The reversal of 85247867752 is 25776874258.

It is not an unprimeable number, because it can be changed into a prime (85247867753) 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, 3764752 + ... + 3787327.

It is an arithmetic number, because the mean of its divisors is an integer number (5352536700).

Almost surely, 285247867752 is an apocalyptic number.

It is an amenable number.

85247867752 is an abundant number, since it is smaller than the sum of its proper divisors (86033306648).

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

85247867752 is a wasteful number, since it uses less digits than its factorization.

85247867752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7552185 (or 7552181 counting only the distinct ones).

The product of its digits is 52684800, while the sum is 61.

The spelling of 85247867752 in words is "eighty-five billion, two hundred forty-seven million, eight hundred sixty-seven thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 17 34 68 83 136 166 332 664 1411 2822 5644 11288 7552079 15104158 30208316 60416632 128385343 256770686 513541372 626822557 1027082744 1253645114 2507290228 5014580456 10655983469 21311966938 42623933876 85247867752