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30534023 = 1317138163
BaseRepresentation
bin111010001111…
…0100110000111
32010110021210202
41310132212013
530304042043
63010241115
7520351322
oct164364607
963407722
1030534023
1116265733
12a28619b
136431090
1440ab7b9
152a321b8
hex1d1e987

30534023 has 8 divisors (see below), whose sum is σ = 34817328. Its totient is φ = 26527104.

The previous prime is 30534011. The next prime is 30534029. The reversal of 30534023 is 32043503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30534023 - 212 = 30529927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30533986 and 30534004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30534029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68861 + ... + 69302.

It is an arithmetic number, because the mean of its divisors is an integer number (4352166).

Almost surely, 230534023 is an apocalyptic number.

30534023 is a deficient number, since it is larger than the sum of its proper divisors (4283305).

30534023 is a wasteful number, since it uses less digits than its factorization.

30534023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138193.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 30534023 is about 5525.7599477357. The cubic root of 30534023 is about 312.5561217605.

Adding to 30534023 its reverse (32043503), we get a palindrome (62577526).

The spelling of 30534023 in words is "thirty million, five hundred thirty-four thousand, twenty-three".

Divisors: 1 13 17 221 138163 1796119 2348771 30534023