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3104102021 = 27111454251
BaseRepresentation
bin1011100100000100…
…1101011010000101
322000022220201110112
42321001031122011
522324122231041
61232003402405
7136631301056
oct27101153205
98008821415
103104102021
111353203879
12727683405
133a6133177
1421638472d
151327a8deb
hexb904d685

3104102021 has 4 divisors (see below), whose sum is σ = 3115556544. Its totient is φ = 3092647500.

The previous prime is 3104102009. The next prime is 3104102069. The reversal of 3104102021 is 1202014013.

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: 1202014013 = 3181377873.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3104102021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3104101987 and 3104102005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3104102081) 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, 5726855 + ... + 5727396.

It is an arithmetic number, because the mean of its divisors is an integer number (778889136).

Almost surely, 23104102021 is an apocalyptic number.

It is an amenable number.

3104102021 is a deficient number, since it is larger than the sum of its proper divisors (11454523).

3104102021 is a wasteful number, since it uses less digits than its factorization.

3104102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11454522.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 3104102021 is about 55714.4686863296. The cubic root of 3104102021 is about 1458.7425873881.

Adding to 3104102021 its reverse (1202014013), we get a palindrome (4306116034).

The spelling of 3104102021 in words is "three billion, one hundred four million, one hundred two thousand, twenty-one".

Divisors: 1 271 11454251 3104102021