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83252861 = 611578693
BaseRepresentation
bin1001111011001…
…01011001111101
312210122200110022
410331211121331
5132303042421
612132221525
72030431466
oct475453175
9183580408
1083252861
1142aa311a
1223a6a8a5
131432bb63
14b0b1d6d
1574977ab
hex4f6567d

83252861 has 8 divisors (see below), whose sum is σ = 85166424. Its totient is φ = 81357120.

The previous prime is 83252857. The next prime is 83252891. The reversal of 83252861 is 16825238.

It can be written as a sum of positive squares in 4 ways, for example, as 7022500 + 76230361 = 2650^2 + 8731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83252861 - 22 = 83252857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83252821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5231 + ... + 13923.

It is an arithmetic number, because the mean of its divisors is an integer number (10645803).

Almost surely, 283252861 is an apocalyptic number.

It is an amenable number.

83252861 is a deficient number, since it is larger than the sum of its proper divisors (1913563).

83252861 is a wasteful number, since it uses less digits than its factorization.

83252861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8911.

The product of its digits is 23040, while the sum is 35.

The square root of 83252861 is about 9124.3005759346. The cubic root of 83252861 is about 436.6495889701.

The spelling of 83252861 in words is "eighty-three million, two hundred fifty-two thousand, eight hundred sixty-one".

Divisors: 1 61 157 8693 9577 530273 1364801 83252861