Search a number
-
+
30544123 = 594491153
BaseRepresentation
bin111010010000…
…1000011111011
32010110210122211
41310201003323
530304402443
63010355551
7520422631
oct164410373
963423584
1030544123
1116272285
12a28bbb7
13643585c
1440b1351
152a3519d
hex1d210fb

30544123 has 8 divisors (see below), whose sum is σ = 31158000. Its totient is φ = 29933568.

The previous prime is 30544097. The next prime is 30544127. The reversal of 30544123 is 32144503.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30544123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30544094 and 30544103.

It is not an unprimeable number, because it can be changed into a prime (30544127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25915 + ... + 27067.

It is an arithmetic number, because the mean of its divisors is an integer number (3894750).

Almost surely, 230544123 is an apocalyptic number.

30544123 is a deficient number, since it is larger than the sum of its proper divisors (613877).

30544123 is a wasteful number, since it uses less digits than its factorization.

30544123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 30544123 is about 5526.6737736183. The cubic root of 30544123 is about 312.5905802488.

Adding to 30544123 its reverse (32144503), we get a palindrome (62688626).

The spelling of 30544123 in words is "thirty million, five hundred forty-four thousand, one hundred twenty-three".

Divisors: 1 59 449 1153 26491 68027 517697 30544123