Search a number
-
+
2104023031 = 11191274821
BaseRepresentation
bin111110101101000…
…1101011111110111
312102122002102222221
41331122031133313
513302112214111
6544440303211
7103065620635
oct17532153767
95378072887
102104023031
1198a736710
124a8771b07
13276b99056
1415d616355
15c4aae371
hex7d68d7f7

2104023031 has 4 divisors (see below), whose sum is σ = 2295297864. Its totient is φ = 1912748200.

The previous prime is 2104023001. The next prime is 2104023091. The reversal of 2104023031 is 1303204012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2104023031 - 27 = 2104022903 is a prime.

It is a super-2 number, since 2×21040230312 = 8853825829956853922, 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 = 2104022996 and 2104023014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104023001) 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, 95637400 + ... + 95637421.

It is an arithmetic number, because the mean of its divisors is an integer number (573824466).

Almost surely, 22104023031 is an apocalyptic number.

2104023031 is a deficient number, since it is larger than the sum of its proper divisors (191274833).

2104023031 is a wasteful number, since it uses less digits than its factorization.

2104023031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191274832.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2104023031 is about 45869.6308138620. The cubic root of 2104023031 is about 1281.3963909163.

Adding to 2104023031 its reverse (1303204012), we get a palindrome (3407227043).

The spelling of 2104023031 in words is "two billion, one hundred four million, twenty-three thousand, thirty-one".

Divisors: 1 11 191274821 2104023031