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3000103021 = 19157900159
BaseRepresentation
bin1011001011010001…
…1111000001101101
321202002020000122201
42302310133001231
522121011244041
61213410341501
7134226312016
oct26264370155
97662200581
103000103021
1112aa530893
126b888a891
1338a71c3b6
1420663200d
151285b4631
hexb2d1f06d

3000103021 has 4 divisors (see below), whose sum is σ = 3158003200. Its totient is φ = 2842202844.

The previous prime is 3000102979. The next prime is 3000103031. The reversal of 3000103021 is 1203010003.

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.

It is a cyclic number.

It is not a de Polignac number, because 3000103021 - 211 = 3000100973 is a prime.

It is a super-2 number, since 2×30001030212 = 18001236273226652882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3000102989 and 3000103007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3000103031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78950061 + ... + 78950098.

It is an arithmetic number, because the mean of its divisors is an integer number (789500800).

Almost surely, 23000103021 is an apocalyptic number.

It is an amenable number.

3000103021 is a deficient number, since it is larger than the sum of its proper divisors (157900179).

3000103021 is a wasteful number, since it uses less digits than its factorization.

3000103021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157900178.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 3000103021 is about 54773.1961912029. The cubic root of 3000103021 is about 1442.2660792288.

Adding to 3000103021 its reverse (1203010003), we get a palindrome (4203113024).

It can be divided in two parts, 300010 and 3021, that added together give a triangular number (303031 = T778).

The spelling of 3000103021 in words is "three billion, one hundred three thousand, twenty-one".

Divisors: 1 19 157900159 3000103021