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86025625 = 5472532
BaseRepresentation
bin1010010000010…
…10010110011001
312222212112222021
411020022112121
5134010310000
612311454441
72063130400
oct510122631
9188775867
1086025625
1144617364
1224987421
1314a8cc4a
14b5d4637
15784411a
hex520a599

86025625 has 45 divisors (see below), whose sum is σ = 127452171. Its totient is φ = 57876000.

The previous prime is 86025623. The next prime is 86025631. The reversal of 86025625 is 52652068.

The square root of 86025625 is 9275.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 47734281 + 38291344 = 6909^2 + 6188^2 .

It is not a de Polignac number, because 86025625 - 21 = 86025623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86025623) 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 44 ways as a sum of consecutive naturals, for example, 1623099 + ... + 1623151.

Almost surely, 286025625 is an apocalyptic number.

86025625 is the 9275-th square number.

86025625 is the 4638-th centered octagonal number.

It is an amenable number.

86025625 is a deficient number, since it is larger than the sum of its proper divisors (41426546).

86025625 is an frugal number, since it uses more digits than its factorization.

86025625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The cubic root of 86025625 is about 441.4443325407. Note that the first 3 decimals are identical.

The spelling of 86025625 in words is "eighty-six million, twenty-five thousand, six hundred twenty-five".

Divisors: 1 5 7 25 35 49 53 125 175 245 265 371 625 875 1225 1325 1855 2597 2809 4375 6125 6625 9275 12985 14045 19663 30625 33125 46375 64925 70225 98315 137641 231875 324625 351125 491575 688205 1623125 1755625 2457875 3441025 12289375 17205125 86025625