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3000032121 = 31000010707
BaseRepresentation
bin1011001011010000…
…1101101101111001
321202002002102101210
42302310031231321
522121002011441
61213405033333
7134225565222
oct26264155571
97662072353
103000032121
1112aa492599
126b8855849
1338a6c6048
14206614249
1512859d616
hexb2d0db79

3000032121 has 4 divisors (see below), whose sum is σ = 4000042832. Its totient is φ = 2000021412.

The previous prime is 3000032111. The next prime is 3000032129. The reversal of 3000032121 is 1212300003.

It is a happy number.

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: 1212300003 = 3404100001.

It is not a de Polignac number, because 3000032121 - 214 = 3000015737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3000032097 and 3000032106.

It is not an unprimeable number, because it can be changed into a prime (3000032129) 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, 500005351 + ... + 500005356.

It is an arithmetic number, because the mean of its divisors is an integer number (1000010708).

Almost surely, 23000032121 is an apocalyptic number.

It is an amenable number.

3000032121 is a deficient number, since it is larger than the sum of its proper divisors (1000010711).

3000032121 is a wasteful number, since it uses less digits than its factorization.

3000032121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000010710.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 3000032121 is about 54772.5489730029. The cubic root of 3000032121 is about 1442.2547176778.

Adding to 3000032121 its reverse (1212300003), we get a palindrome (4212332124).

The spelling of 3000032121 in words is "three billion, thirty-two thousand, one hundred twenty-one".

Divisors: 1 3 1000010707 3000032121