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86700140 = 22529831801
BaseRepresentation
bin1010010101011…
…11000001101100
320001010211020022
411022233001230
5134143401030
612334141312
72101640042
oct512570154
9201124208
1086700140
1144a3810a
1225051838
1314c67c77
14b72c392
157928de5
hex52af06c

86700140 has 48 divisors (see below), whose sum is σ = 190723680. Its totient is φ = 33062400.

The previous prime is 86700137. The next prime is 86700157. The reversal of 86700140 is 4100768.

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, 47240 + ... + 49040.

It is an arithmetic number, because the mean of its divisors is an integer number (3973410).

Almost surely, 286700140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86700140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95361840).

86700140 is an abundant number, since it is smaller than the sum of its proper divisors (104023540).

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

86700140 is a wasteful number, since it uses less digits than its factorization.

86700140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922 (or 1920 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 86700140 is about 9311.2909953454. The cubic root of 86700140 is about 442.5950980348.

The spelling of 86700140 in words is "eighty-six million, seven hundred thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 29 58 83 116 145 166 290 332 415 580 830 1660 1801 2407 3602 4814 7204 9005 9628 12035 18010 24070 36020 48140 52229 104458 149483 208916 261145 298966 522290 597932 747415 1044580 1494830 2989660 4335007 8670014 17340028 21675035 43350070 86700140