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86850420 = 22351447507
BaseRepresentation
bin1010010110100…
…11101101110100
320001102110101020
411023103231310
5134213203140
612341301140
72103134136
oct513235564
9201373336
1086850420
1145030008
12251047b0
1314cbb4a7
14b76b056
1579586d0
hex52d3b74

86850420 has 24 divisors (see below), whose sum is σ = 243181344. Its totient is φ = 23160096.

The previous prime is 86850403. The next prime is 86850431. The reversal of 86850420 is 2405868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 723694 + ... + 723813.

It is an arithmetic number, because the mean of its divisors is an integer number (10132556).

Almost surely, 286850420 is an apocalyptic number.

It is an amenable number.

86850420 is an abundant number, since it is smaller than the sum of its proper divisors (156330924).

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

86850420 is a wasteful number, since it uses less digits than its factorization.

86850420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447519 (or 1447517 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 86850420 is about 9319.3572739755. The cubic root of 86850420 is about 442.8506716264.

The spelling of 86850420 in words is "eighty-six million, eight hundred fifty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1447507 2895014 4342521 5790028 7237535 8685042 14475070 17370084 21712605 28950140 43425210 86850420