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86069820 = 22351434497
BaseRepresentation
bin1010010000101…
…01001000111100
312222221210121010
411020111020330
5134013213240
612312435220
72063403264
oct510251074
9188853533
1086069820
1144647591
12249a8b10
1314aa70b5
14b6067a4
157852280
hex521523c

86069820 has 24 divisors (see below), whose sum is σ = 240995664. Its totient is φ = 22951936.

The previous prime is 86069813. The next prime is 86069833. The reversal of 86069820 is 2896068.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 717189 + ... + 717308.

It is an arithmetic number, because the mean of its divisors is an integer number (10041486).

Almost surely, 286069820 is an apocalyptic number.

It is an amenable number.

86069820 is an abundant number, since it is smaller than the sum of its proper divisors (154925844).

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

86069820 is a wasteful number, since it uses less digits than its factorization.

86069820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434509 (or 1434507 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 86069820 is about 9277.3821738678. The cubic root of 86069820 is about 441.5199158034.

The spelling of 86069820 in words is "eighty-six million, sixty-nine thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1434497 2868994 4303491 5737988 7172485 8606982 14344970 17213964 21517455 28689940 43034910 86069820