Search a number
-
+
86748690 = 2357413089
BaseRepresentation
bin1010010101110…
…10111000010010
320001020021211110
411022322320102
5134201424230
612335154150
72102231430
oct512727022
9201207743
1086748690
1144a70636
1225075956
1314c840b2
14b741d50
1579384b0
hex52bae12

86748690 has 32 divisors (see below), whose sum is σ = 237939840. Its totient is φ = 19828224.

The previous prime is 86748689. The next prime is 86748707. The reversal of 86748690 is 9684768.

It is a super-3 number, since 3×867486903 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206335 + ... + 206754.

It is an arithmetic number, because the mean of its divisors is an integer number (7435620).

Almost surely, 286748690 is an apocalyptic number.

86748690 is an abundant number, since it is smaller than the sum of its proper divisors (151191150).

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

86748690 is a wasteful number, since it uses less digits than its factorization.

86748690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413106.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 86748690 is about 9313.8976803484. The cubic root of 86748690 is about 442.6776968339.

The spelling of 86748690 in words is "eighty-six million, seven hundred forty-eight thousand, six hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 413089 826178 1239267 2065445 2478534 2891623 4130890 5783246 6196335 8674869 12392670 14458115 17349738 28916230 43374345 86748690