Search a number
-
+
1230123093 = 3410041031
BaseRepresentation
bin100100101010010…
…0011000001010101
310011201200201122120
41021110203001111
510004402414333
6322021450153
742324605463
oct11124430125
93151621576
101230123093
11581410761
122a3b70959
13167b104b4
14b9531833
1572edadb3
hex49523055

1230123093 has 4 divisors (see below), whose sum is σ = 1640164128. Its totient is φ = 820082060.

The previous prime is 1230123071. The next prime is 1230123107. The reversal of 1230123093 is 3903210321.

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 1230123093 - 26 = 1230123029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230128093) 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, 205020513 + ... + 205020518.

It is an arithmetic number, because the mean of its divisors is an integer number (410041032).

Almost surely, 21230123093 is an apocalyptic number.

It is an amenable number.

1230123093 is a deficient number, since it is larger than the sum of its proper divisors (410041035).

1230123093 is an equidigital number, since it uses as much as digits as its factorization.

1230123093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410041034.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 1230123093 is about 35073.1106832571. The cubic root of 1230123093 is about 1071.4770102113.

The spelling of 1230123093 in words is "one billion, two hundred thirty million, one hundred twenty-three thousand, ninety-three".

Divisors: 1 3 410041031 1230123093