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85066541 = 729419047
BaseRepresentation
bin1010001001000…
…00001100101101
312221001211100122
411010200030231
5133234112131
612235134325
72052024260
oct504401455
9187054318
1085066541
114402182a
12245a43a5
1314815541
14b424cd7
157704d7b
hex512032d

85066541 has 8 divisors (see below), whose sum is σ = 100571520. Its totient is φ = 70399728.

The previous prime is 85066523. The next prime is 85066559. The reversal of 85066541 is 14566058.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (85066523) and next prime (85066559).

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

It is not a de Polignac number, because 85066541 - 214 = 85050157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85066571) 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, 209321 + ... + 209726.

It is an arithmetic number, because the mean of its divisors is an integer number (12571440).

Almost surely, 285066541 is an apocalyptic number.

It is an amenable number.

85066541 is a deficient number, since it is larger than the sum of its proper divisors (15504979).

85066541 is a wasteful number, since it uses less digits than its factorization.

85066541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419083.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 85066541 is about 9223.1524437147. The cubic root of 85066541 is about 439.7976704048.

The spelling of 85066541 in words is "eighty-five million, sixty-six thousand, five hundred forty-one".

Divisors: 1 7 29 203 419047 2933329 12152363 85066541