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83253830 = 2511756853
BaseRepresentation
bin1001111011001…
…01101001000110
312210122201210012
410331211221012
5132303110310
612132230222
72030434352
oct475455106
9183581705
1083253830
1142aa3920
1223a6b372
131432c42a
14b0b2462
157497c05
hex4f65a46

83253830 has 16 divisors (see below), whose sum is σ = 163480464. Its totient is φ = 30274080.

The previous prime is 83253829. The next prime is 83253847. The reversal of 83253830 is 3835238.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378317 + ... + 378536.

It is an arithmetic number, because the mean of its divisors is an integer number (10217529).

Almost surely, 283253830 is an apocalyptic number.

83253830 is a deficient number, since it is larger than the sum of its proper divisors (80226634).

83253830 is a wasteful number, since it uses less digits than its factorization.

83253830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756871.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 83253830 is about 9124.3536757405. The cubic root of 83253830 is about 436.6512830533.

The spelling of 83253830 in words is "eighty-three million, two hundred fifty-three thousand, eight hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 756853 1513706 3784265 7568530 8325383 16650766 41626915 83253830