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85872830 = 258587283
BaseRepresentation
bin1010001111001…
…01000010111110
312222120210101012
411013211002332
5133440412310
612304315222
72061623051
oct507450276
9188523335
1085872830
114452258a
1224912b12
1314a38534
14b594a98
157813c05
hex51e50be

85872830 has 8 divisors (see below), whose sum is σ = 154571112. Its totient is φ = 34349128.

The previous prime is 85872827. The next prime is 85872859. The reversal of 85872830 is 3827858.

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, 4293632 + ... + 4293651.

It is an arithmetic number, because the mean of its divisors is an integer number (19321389).

Almost surely, 285872830 is an apocalyptic number.

85872830 is a deficient number, since it is larger than the sum of its proper divisors (68698282).

85872830 is a wasteful number, since it uses less digits than its factorization.

85872830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8587290.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 85872830 is about 9266.7594120059. The cubic root of 85872830 is about 441.1828195304.

The spelling of 85872830 in words is "eighty-five million, eight hundred seventy-two thousand, eight hundred thirty".

Divisors: 1 2 5 10 8587283 17174566 42936415 85872830