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83250329 = 292870701
BaseRepresentation
bin1001111011001…
…00110010011001
312210122112222112
410331210302121
5132303002304
612132202105
72030421221
oct475446231
9183575875
1083250329
1142aa1228
1223a69335
131432a966
14b0b1081
157496b6e
hex4f64c99

83250329 has 4 divisors (see below), whose sum is σ = 86121060. Its totient is φ = 80379600.

The previous prime is 83250313. The next prime is 83250341. The reversal of 83250329 is 92305238.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92305238 = 246152619.

It can be written as a sum of positive squares in 2 ways, for example, as 28090000 + 55160329 = 5300^2 + 7427^2 .

It is a cyclic number.

It is not a de Polignac number, because 83250329 - 24 = 83250313 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83250295 and 83250304.

It is not an unprimeable number, because it can be changed into a prime (83250359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435322 + ... + 1435379.

It is an arithmetic number, because the mean of its divisors is an integer number (21530265).

Almost surely, 283250329 is an apocalyptic number.

It is an amenable number.

83250329 is a deficient number, since it is larger than the sum of its proper divisors (2870731).

83250329 is a wasteful number, since it uses less digits than its factorization.

83250329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870730.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 83250329 is about 9124.1618245185. The cubic root of 83250329 is about 436.6451622635.

The spelling of 83250329 in words is "eighty-three million, two hundred fifty thousand, three hundred twenty-nine".

Divisors: 1 29 2870701 83250329