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86143903 = 4714912301
BaseRepresentation
bin1010010001001…
…11001110011111
320000002120012221
411020213032133
5134023101103
612314210211
72064132256
oct510471637
9200076187
1086143903
114469820a
1224a23967
1314b01a31
14b62579d
1578691bd
hex522739f

86143903 has 8 divisors (see below), whose sum is σ = 88574400. Its totient is φ = 83738400.

The previous prime is 86143847. The next prime is 86143907. The reversal of 86143903 is 30934168.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-86143903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86143907) 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, 853 + ... + 13153.

It is an arithmetic number, because the mean of its divisors is an integer number (11071800).

Almost surely, 286143903 is an apocalyptic number.

86143903 is a deficient number, since it is larger than the sum of its proper divisors (2430497).

86143903 is a wasteful number, since it uses less digits than its factorization.

86143903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12497.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 86143903 is about 9281.3739823369. The cubic root of 86143903 is about 441.6465561667.

The spelling of 86143903 in words is "eighty-six million, one hundred forty-three thousand, nine hundred three".

Divisors: 1 47 149 7003 12301 578147 1832849 86143903