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86998380 = 22357207139
BaseRepresentation
bin1010010111101…
…11110101101100
320001200222100020
411023313311230
5134232422010
612344402140
72104321410
oct513676554
9201628306
1086998380
1145121197
1225176350
1315040941
14b7a8d40
157987470
hex52f7d6c

86998380 has 48 divisors (see below), whose sum is σ = 278396160. Its totient is φ = 19885248.

The previous prime is 86998343. The next prime is 86998409. The reversal of 86998380 is 8389968.

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 15 ways as a sum of consecutive naturals, for example, 103150 + ... + 103989.

It is an arithmetic number, because the mean of its divisors is an integer number (5799920).

Almost surely, 286998380 is an apocalyptic number.

It is an amenable number.

86998380 is an abundant number, since it is smaller than the sum of its proper divisors (191397780).

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

86998380 is a wasteful number, since it uses less digits than its factorization.

86998380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207158 (or 207156 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The square root of 86998380 is about 9327.2922115692. The cubic root of 86998380 is about 443.1020118469.

It can be divided in two parts, 86998 and 380, that added together give a palindrome (87378).

The spelling of 86998380 in words is "eighty-six million, nine hundred ninety-eight thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 207139 414278 621417 828556 1035695 1242834 1449973 2071390 2485668 2899946 3107085 4142780 4349919 5799892 6214170 7249865 8699838 12428340 14499730 17399676 21749595 28999460 43499190 86998380