Search a number
-
+
1023123023 = 1378701771
BaseRepresentation
bin111100111110111…
…001111001001111
32122022012000221022
4330332321321033
54043404414043
6245305024355
734232254646
oct7476717117
92568160838
101023123023
1148558751a
122467850bb
13133c74c50
1499c4a35d
155ec4c868
hex3cfb9e4f

1023123023 has 4 divisors (see below), whose sum is σ = 1101824808. Its totient is φ = 944421240.

The previous prime is 1023123011. The next prime is 1023123043. The reversal of 1023123023 is 3203213201.

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

It is a cyclic number.

It is not a de Polignac number, because 1023123023 - 214 = 1023106639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023122992 and 1023123010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023123043) 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, 39350873 + ... + 39350898.

It is an arithmetic number, because the mean of its divisors is an integer number (275456202).

Almost surely, 21023123023 is an apocalyptic number.

1023123023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1023123023 is a deficient number, since it is larger than the sum of its proper divisors (78701785).

1023123023 is an equidigital number, since it uses as much as digits as its factorization.

1023123023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78701784.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1023123023 is about 31986.2942992776. The cubic root of 1023123023 is about 1007.6490176869.

Adding to 1023123023 its reverse (3203213201), we get a palindrome (4226336224).

The spelling of 1023123023 in words is "one billion, twenty-three million, one hundred twenty-three thousand, twenty-three".

Divisors: 1 13 78701771 1023123023