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85855460 = 2254292773
BaseRepresentation
bin1010001111000…
…00110011100100
312222112220112212
411013200303210
5133434333320
612304102552
72061521315
oct507406344
9188486485
1085855460
1144510529
1224904a58
1314a30662
14b58c60c
15780d9c5
hex51e0ce4

85855460 has 12 divisors (see below), whose sum is σ = 180296508. Its totient is φ = 34342176.

The previous prime is 85855459. The next prime is 85855463. The reversal of 85855460 is 6455858.

It can be written as a sum of positive squares in 2 ways, for example, as 25140196 + 60715264 = 5014^2 + 7792^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (85855463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2146367 + ... + 2146406.

It is an arithmetic number, because the mean of its divisors is an integer number (15024709).

Almost surely, 285855460 is an apocalyptic number.

It is an amenable number.

85855460 is an abundant number, since it is smaller than the sum of its proper divisors (94441048).

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

85855460 is a wasteful number, since it uses less digits than its factorization.

85855460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4292782 (or 4292780 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 41.

The square root of 85855460 is about 9265.8221437712. The cubic root of 85855460 is about 441.1530706473.

The spelling of 85855460 in words is "eighty-five million, eight hundred fifty-five thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 4292773 8585546 17171092 21463865 42927730 85855460