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83440753 = 1123671879
BaseRepresentation
bin1001111100100…
…11010001110001
312211000020012021
410332103101301
5132330101003
612140231441
72032143334
oct476232161
9184006167
1083440753
1143111300
1223b3b581
1314396536
14b12061b
1574d32bd
hex4f93471

83440753 has 12 divisors (see below), whose sum is σ = 92014720. Its totient is φ = 75608280.

The previous prime is 83440751. The next prime is 83440759. The reversal of 83440753 is 35704438.

It is a happy number.

It is not a de Polignac number, because 83440753 - 21 = 83440751 is a prime.

It is a super-3 number, since 3×834407533 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83440751) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43468 + ... + 45346.

Almost surely, 283440753 is an apocalyptic number.

It is an amenable number.

83440753 is a deficient number, since it is larger than the sum of its proper divisors (8573967).

83440753 is a wasteful number, since it uses less digits than its factorization.

83440753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268 (or 2257 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 83440753 is about 9134.5910143804. The cubic root of 83440753 is about 436.9778312287.

The spelling of 83440753 in words is "eighty-three million, four hundred forty thousand, seven hundred fifty-three".

Divisors: 1 11 121 367 1879 4037 20669 44407 227359 689593 7585523 83440753