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85530574 = 264366509
BaseRepresentation
bin1010001100100…
…01011111001110
312221221101220001
411012101133032
5133343434244
612253114514
72055666163
oct506213716
9187841801
1085530574
1144309428
1224788a3a
131494880c
14b50606a
1577975d4
hex51917ce

85530574 has 8 divisors (see below), whose sum is σ = 128497320. Its totient is φ = 42698136.

The previous prime is 85530547. The next prime is 85530631. The reversal of 85530574 is 47503558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31969 + ... + 34540.

It is an arithmetic number, because the mean of its divisors is an integer number (16062165).

Almost surely, 285530574 is an apocalyptic number.

85530574 is a deficient number, since it is larger than the sum of its proper divisors (42966746).

85530574 is a wasteful number, since it uses less digits than its factorization.

85530574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67154.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 85530574 is about 9248.2741092595. The cubic root of 85530574 is about 440.5959108875.

The spelling of 85530574 in words is "eighty-five million, five hundred thirty thousand, five hundred seventy-four".

Divisors: 1 2 643 1286 66509 133018 42765287 85530574