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86349868 = 221117671723
BaseRepresentation
bin1010010010110…
…01100000101100
320000111000202021
411021121200230
5134101143433
612322435524
72065650613
oct511314054
9200430667
1086349868
1144818a30
1224b02ba4
1314b746c7
14b67a87a
1578aa22d
hex525982c

86349868 has 48 divisors (see below), whose sum is σ = 177254784. Its totient is φ = 36368640.

The previous prime is 86349859. The next prime is 86349869. The reversal of 86349868 is 86894368.

It is not an unprimeable number, because it can be changed into a prime (86349869) 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 15 ways as a sum of consecutive naturals, for example, 49255 + ... + 50977.

It is an arithmetic number, because the mean of its divisors is an integer number (3692808).

Almost surely, 286349868 is an apocalyptic number.

It is an amenable number.

86349868 is an abundant number, since it is smaller than the sum of its proper divisors (90904916).

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

86349868 is a wasteful number, since it uses less digits than its factorization.

86349868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822 (or 1820 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 52.

The square root of 86349868 is about 9292.4629673731. The cubic root of 86349868 is about 441.9982596520.

The spelling of 86349868 in words is "eighty-six million, three hundred forty-nine thousand, eight hundred sixty-eight".

Divisors: 1 2 4 11 17 22 34 44 67 68 134 187 268 374 737 748 1139 1474 1723 2278 2948 3446 4556 6892 12529 18953 25058 29291 37906 50116 58582 75812 115441 117164 230882 322201 461764 644402 1269851 1288804 1962497 2539702 3924994 5079404 7849988 21587467 43174934 86349868