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83025137 = 132491273
BaseRepresentation
bin1001111001011…
…01110011110001
312210020010002002
410330231303301
5132223301022
612123303345
72025462536
oct474556361
9183203062
1083025137
1142958018
122397ab55
131427c300
14b052d8d
157450092
hex4f2dcf1

83025137 has 6 divisors (see below), whose sum is σ = 89903142. Its totient is φ = 76638432.

The previous prime is 83025119. The next prime is 83025139. The reversal of 83025137 is 73152038.

It can be written as a sum of positive squares in 3 ways, for example, as 6270016 + 76755121 = 2504^2 + 8761^2 .

It is not a de Polignac number, because 83025137 - 26 = 83025073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83025139) 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, 245468 + ... + 245805.

It is an arithmetic number, because the mean of its divisors is an integer number (14983857).

Almost surely, 283025137 is an apocalyptic number.

It is an amenable number.

83025137 is a deficient number, since it is larger than the sum of its proper divisors (6878005).

83025137 is a wasteful number, since it uses less digits than its factorization.

83025137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491299 (or 491286 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 83025137 is about 9111.8130468091. The cubic root of 83025137 is about 436.2510985925.

The spelling of 83025137 in words is "eighty-three million, twenty-five thousand, one hundred thirty-seven".

Divisors: 1 13 169 491273 6386549 83025137