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87250329 = 3237479547
BaseRepresentation
bin1010011001101…
…01010110011001
320002011202221200
411030311112121
5134314002304
612354024413
72106421065
oct514652631
9202152850
1087250329
1145283511
1225278109
13150cb51a
14b832aa5
1579d6e39
hex5335599

87250329 has 24 divisors (see below), whose sum is σ = 129941760. Its totient is φ = 56373408.

The previous prime is 87250327. The next prime is 87250333. The reversal of 87250329 is 92305278.

It is a happy number.

87250329 is a `hidden beast` number, since 87 + 250 + 329 = 666.

It is not a de Polignac number, because 87250329 - 21 = 87250327 is a prime.

It is a super-2 number, since 2×872503292 = 15225239821216482, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 87250293 and 87250302.

It is not an unprimeable number, because it can be changed into a prime (87250327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159234 + ... + 159780.

It is an arithmetic number, because the mean of its divisors is an integer number (5414240).

Almost surely, 287250329 is an apocalyptic number.

It is an amenable number.

87250329 is a deficient number, since it is larger than the sum of its proper divisors (42691431).

87250329 is a wasteful number, since it uses less digits than its factorization.

87250329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 87250329 is about 9340.7884570843. The cubic root of 87250329 is about 443.5293436055.

The spelling of 87250329 in words is "eighty-seven million, two hundred fifty thousand, three hundred twenty-nine".

Divisors: 1 3 9 37 111 333 479 547 1437 1641 4311 4923 17723 20239 53169 60717 159507 182151 262013 786039 2358117 9694481 29083443 87250329