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86087444 = 2250342787
BaseRepresentation
bin1010010000110…
…01011100010100
312222222200202212
411020121130110
5134014244234
612313052552
72063505542
oct510313424
9188880685
1086087444
1144659853
12249b7158
1314ab2121
14b60cd92
1578575ce
hex5219714

86087444 has 12 divisors (see below), whose sum is σ = 150956064. Its totient is φ = 42957144.

The previous prime is 86087411. The next prime is 86087447. The reversal of 86087444 is 44478068.

It is a super-2 number, since 2×860874442 = 14822096028906272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86087447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19382 + ... + 23405.

It is an arithmetic number, because the mean of its divisors is an integer number (12579672).

Almost surely, 286087444 is an apocalyptic number.

It is an amenable number.

86087444 is a deficient number, since it is larger than the sum of its proper divisors (64868620).

86087444 is a wasteful number, since it uses less digits than its factorization.

86087444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43294 (or 43292 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 86087444 is about 9278.3319621579. The cubic root of 86087444 is about 441.5500495404.

The spelling of 86087444 in words is "eighty-six million, eighty-seven thousand, four hundred forty-four".

Divisors: 1 2 4 503 1006 2012 42787 85574 171148 21521861 43043722 86087444