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85920458 = 2133304633
BaseRepresentation
bin1010001111100…
…00101011001010
312222200012201012
411013300223022
5133443423313
612305323522
72062211651
oct507605312
9188605635
1085920458
1144555348
12249365a2
1314a54110
14b5a8198
157822da8
hex51f0aca

85920458 has 8 divisors (see below), whose sum is σ = 138794628. Its totient is φ = 39655584.

The previous prime is 85920427. The next prime is 85920467. The reversal of 85920458 is 85402958.

It can be written as a sum of positive squares in 2 ways, for example, as 85507009 + 413449 = 9247^2 + 643^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1652291 + ... + 1652342.

Almost surely, 285920458 is an apocalyptic number.

85920458 is a deficient number, since it is larger than the sum of its proper divisors (52874170).

85920458 is a wasteful number, since it uses less digits than its factorization.

85920458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304648.

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 85920458 is about 9269.3288861708. The cubic root of 85920458 is about 441.2643694679.

The spelling of 85920458 in words is "eighty-five million, nine hundred twenty thousand, four hundred fifty-eight".

Divisors: 1 2 13 26 3304633 6609266 42960229 85920458