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86770125 = 32531317349
BaseRepresentation
bin1010010110000…
…00000111001101
320001021101020100
411023000013031
5134203121000
612335441313
72102351061
oct513000715
9201241210
1086770125
1144a85752
1225086239
1314c90a90
14b749aa1
15793ea00
hex52c01cd

86770125 has 96 divisors (see below), whose sum is σ = 178869600. Its totient is φ = 40089600.

The previous prime is 86770081. The next prime is 86770129. The reversal of 86770125 is 52107768.

It can be written as a sum of positive squares in 16 ways, for example, as 55264356 + 31505769 = 7434^2 + 5613^2 .

It is not a de Polignac number, because 86770125 - 27 = 86769997 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 86770125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86770129) 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 95 ways as a sum of consecutive naturals, for example, 248451 + ... + 248799.

It is an arithmetic number, because the mean of its divisors is an integer number (1863225).

Almost surely, 286770125 is an apocalyptic number.

86770125 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

86770125 is an abundant number, since it is smaller than the sum of its proper divisors (92099475).

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

86770125 is a wasteful number, since it uses less digits than its factorization.

86770125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 86770125 is about 9315.0483090535. The cubic root of 86770125 is about 442.7141546947.

The spelling of 86770125 in words is "eighty-six million, seven hundred seventy thousand, one hundred twenty-five".

Divisors: 1 3 5 9 13 15 17 25 39 45 51 65 75 85 117 125 153 195 221 225 255 325 349 375 425 585 663 765 975 1047 1105 1125 1275 1625 1745 1989 2125 2925 3141 3315 3825 4537 4875 5235 5525 5933 6375 8725 9945 13611 14625 15705 16575 17799 19125 22685 26175 27625 29665 40833 43625 49725 53397 68055 77129 78525 82875 88995 113425 130875 148325 204165 231387 248625 266985 340275 385645 392625 444975 567125 694161 741625 1020825 1156935 1334925 1701375 1928225 2224875 3470805 5104125 5784675 6674625 9641125 17354025 28923375 86770125