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83016431 = 4119110601
BaseRepresentation
bin1001111001010…
…11101011101111
312210012200010122
410330223223233
5132223011211
612123155155
72025425261
oct474535357
9183180118
1083016431
1142951523
1223975abb
1314278364
14b04db31
15744c6db
hex4f2baef

83016431 has 8 divisors (see below), whose sum is σ = 85494528. Its totient is φ = 80560000.

The previous prime is 83016421. The next prime is 83016443. The reversal of 83016431 is 13461038.

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 83016431 - 210 = 83015407 is a prime.

It is a super-2 number, since 2×830164312 = 13783455631955522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83016431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83016421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2531 + ... + 13131.

It is an arithmetic number, because the mean of its divisors is an integer number (10686816).

Almost surely, 283016431 is an apocalyptic number.

83016431 is a deficient number, since it is larger than the sum of its proper divisors (2478097).

83016431 is a wasteful number, since it uses less digits than its factorization.

83016431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10833.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 83016431 is about 9111.3353027973. The cubic root of 83016431 is about 436.2358496572.

Adding to 83016431 its reverse (13461038), we get a palindrome (96477469).

The spelling of 83016431 in words is "eighty-three million, sixteen thousand, four hundred thirty-one".

Divisors: 1 41 191 7831 10601 434641 2024791 83016431