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83010001 = 147156431
BaseRepresentation
bin1001111001010…
…10000111010001
312210012100022111
410330222013101
5132222310001
612123105321
72025400444
oct474520721
9183170274
1083010001
1142947708
1223972241
1314275459
14b04b65b
15744a851
hex4f2a1d1

83010001 has 4 divisors (see below), whose sum is σ = 83067904. Its totient is φ = 82952100.

The previous prime is 83009957. The next prime is 83010007. The reversal of 83010001 is 10001038.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10001038 = 25000519.

It is a cyclic number.

It is not a de Polignac number, because 83010001 - 29 = 83009489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83010007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26745 + ... + 29686.

It is an arithmetic number, because the mean of its divisors is an integer number (20766976).

Almost surely, 283010001 is an apocalyptic number.

It is an amenable number.

83010001 is a deficient number, since it is larger than the sum of its proper divisors (57903).

83010001 is a wasteful number, since it uses less digits than its factorization.

83010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57902.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 83010001 is about 9110.9824387933. The cubic root of 83010001 is about 436.2245865498.

Adding to 83010001 its reverse (10001038), we get a palindrome (93011039).

The spelling of 83010001 in words is "eighty-three million, ten thousand, one".

Divisors: 1 1471 56431 83010001