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102003001 = 195368579
BaseRepresentation
bin1100001010001…
…11000100111001
321002221021210221
412011013010321
5202103044001
614042140041
72346003562
oct605070471
9232837727
10102003001
115263a401
122a1b1621
1318195409
14d793169
158e4d1a1
hex6147139

102003001 has 4 divisors (see below), whose sum is σ = 107371600. Its totient is φ = 96634404.

The previous prime is 102002987. The next prime is 102003037. The reversal of 102003001 is 100300201.

Adding to 102003001 its reverse (100300201), we get a palindrome (202303202).

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: 100300201 = 259138711.

It is a cyclic number.

It is not a de Polignac number, because 102003001 - 217 = 101871929 is a prime.

It is a super-2 number, since 2×1020030012 = 20809224426012002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102003071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2684271 + ... + 2684308.

It is an arithmetic number, because the mean of its divisors is an integer number (26842900).

Almost surely, 2102003001 is an apocalyptic number.

It is an amenable number.

102003001 is a deficient number, since it is larger than the sum of its proper divisors (5368599).

102003001 is an equidigital number, since it uses as much as digits as its factorization.

102003001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5368598.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 102003001 is about 10099.6535089081. The cubic root of 102003001 is about 467.2374550319.

The spelling of 102003001 in words is "one hundred two million, three thousand, one".

Divisors: 1 19 5368579 102003001