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83416525 = 523336661
BaseRepresentation
bin1001111100011…
…01010111001101
312210221222221221
410332031113031
5132323312100
612135523341
72032012603
oct476152715
9183858857
1083416525
11430a5085
1223b29551
13143884ba
14b115873
1574cb01a
hex4f8d5cd

83416525 has 6 divisors (see below), whose sum is σ = 103436522. Its totient is φ = 66733200.

The previous prime is 83416523. The next prime is 83416559. The reversal of 83416525 is 52561438.

It can be written as a sum of positive squares in 3 ways, for example, as 21353641 + 62062884 = 4621^2 + 7878^2 .

It is not a de Polignac number, because 83416525 - 21 = 83416523 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83416523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1668306 + ... + 1668355.

Almost surely, 283416525 is an apocalyptic number.

It is an amenable number.

83416525 is a deficient number, since it is larger than the sum of its proper divisors (20019997).

83416525 is a wasteful number, since it uses less digits than its factorization.

83416525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336671 (or 3336666 counting only the distinct ones).

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

The square root of 83416525 is about 9133.2647503508. The cubic root of 83416525 is about 436.9355332572.

The spelling of 83416525 in words is "eighty-three million, four hundred sixteen thousand, five hundred twenty-five".

Divisors: 1 5 25 3336661 16683305 83416525