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85036128 = 253885793
BaseRepresentation
bin1010001000110…
…00110001100000
312221000021122020
411010120301200
5133232124003
612234341440
72051536512
oct504306140
9187007566
1085036128
11440009a1
122458a880
1314804748
14b417bb2
1576ead53
hex5118c60

85036128 has 24 divisors (see below), whose sum is σ = 223220088. Its totient is φ = 28345344.

The previous prime is 85036121. The next prime is 85036141. The reversal of 85036128 is 82163058.

It is a happy number.

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

It is a super-2 number, since 2×850361282 = 14462286130464768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85036121) 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, 442801 + ... + 442992.

It is an arithmetic number, because the mean of its divisors is an integer number (9300837).

Almost surely, 285036128 is an apocalyptic number.

It is an amenable number.

85036128 is an abundant number, since it is smaller than the sum of its proper divisors (138183960).

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

85036128 is a wasteful number, since it uses less digits than its factorization.

85036128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885806 (or 885798 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 85036128 is about 9221.5035650375. The cubic root of 85036128 is about 439.7452519853.

The spelling of 85036128 in words is "eighty-five million, thirty-six thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 885793 1771586 2657379 3543172 5314758 7086344 10629516 14172688 21259032 28345376 42518064 85036128