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86867420 = 22522319477
BaseRepresentation
bin1010010110101…
…11110111011100
320001110022200212
411023113313130
5134214224140
612341511552
72103234533
oct513276734
9201408625
1086867420
1145041862
12251125b8
1314cc6153
14b77331a
15795d765
hex52d7ddc

86867420 has 24 divisors (see below), whose sum is σ = 183249024. Its totient is φ = 34589376.

The previous prime is 86867393. The next prime is 86867437. The reversal of 86867420 is 2476868.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5279 + ... + 14198.

It is an arithmetic number, because the mean of its divisors is an integer number (7635376).

Almost surely, 286867420 is an apocalyptic number.

It is an amenable number.

86867420 is an abundant number, since it is smaller than the sum of its proper divisors (96381604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86867420 is a wasteful number, since it uses less digits than its factorization.

86867420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19709 (or 19707 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 86867420 is about 9320.2693094138. The cubic root of 86867420 is about 442.8795640995.

The spelling of 86867420 in words is "eighty-six million, eight hundred sixty-seven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 223 446 892 1115 2230 4460 19477 38954 77908 97385 194770 389540 4343371 8686742 17373484 21716855 43433710 86867420