Search a number
-
+
30254521 = 1110912521
BaseRepresentation
bin111001101101…
…0010110111001
32002221002101211
41303122112321
530221121041
63000243121
7515105413
oct163322671
962832354
1030254521
1116094740
12a1704a1
136363aab
1440379b3
1529c9481
hex1cda5b9

30254521 has 8 divisors (see below), whose sum is σ = 33048288. Its totient is φ = 27468000.

The previous prime is 30254519. The next prime is 30254531. The reversal of 30254521 is 12545203.

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 30254521 - 21 = 30254519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30254492 and 30254501.

It is not an unprimeable number, because it can be changed into a prime (30254531) 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, 10741 + ... + 13261.

It is an arithmetic number, because the mean of its divisors is an integer number (4131036).

Almost surely, 230254521 is an apocalyptic number.

It is an amenable number.

30254521 is a deficient number, since it is larger than the sum of its proper divisors (2793767).

30254521 is a wasteful number, since it uses less digits than its factorization.

30254521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3623.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 30254521 is about 5500.4109846447. The cubic root of 30254521 is about 311.5995059928.

Adding to 30254521 its reverse (12545203), we get a palindrome (42799724).

The spelling of 30254521 in words is "thirty million, two hundred fifty-four thousand, five hundred twenty-one".

Divisors: 1 11 1091 2521 12001 27731 2750411 30254521