Search a number
-
+
30243124 = 2217942239
BaseRepresentation
bin111001101011…
…1100100110100
32002220111202201
41303113210310
530220234444
63000114244
7515030242
oct163274464
962814681
1030243124
111608711a
12a165984
13635b852
144033792
1529c5dd4
hex1cd7934

30243124 has 12 divisors (see below), whose sum is σ = 53222400. Its totient is φ = 15036728.

The previous prime is 30243121. The next prime is 30243127. The reversal of 30243124 is 42134203.

It is an interprime number because it is at equal distance from previous prime (30243121) and next prime (30243127).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30243121) 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, 20404 + ... + 21835.

It is an arithmetic number, because the mean of its divisors is an integer number (4435200).

Almost surely, 230243124 is an apocalyptic number.

It is an amenable number.

30243124 is a deficient number, since it is larger than the sum of its proper divisors (22979276).

30243124 is a wasteful number, since it uses less digits than its factorization.

30243124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42422 (or 42420 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 30243124 is about 5499.3748735652. The cubic root of 30243124 is about 311.5603741488.

Adding to 30243124 its reverse (42134203), we get a palindrome (72377327).

The spelling of 30243124 in words is "thirty million, two hundred forty-three thousand, one hundred twenty-four".

Divisors: 1 2 4 179 358 716 42239 84478 168956 7560781 15121562 30243124