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30242512 = 242836679
BaseRepresentation
bin111001101011…
…1011011010000
32002220110221001
41303113123100
530220230022
63000111344
7515025406
oct163273320
962813831
1030242512
1116086713
12a165554
13635b4a1
144033476
1529c5b27
hex1cd76d0

30242512 has 20 divisors (see below), whose sum is σ = 58810720. Its totient is φ = 15065568.

The previous prime is 30242503. The next prime is 30242549. The reversal of 30242512 is 21524203.

It is a self number, because there is not a number n which added to its sum of digits gives 30242512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1189 + ... + 7867.

It is an arithmetic number, because the mean of its divisors is an integer number (2940536).

Almost surely, 230242512 is an apocalyptic number.

It is an amenable number.

30242512 is a deficient number, since it is larger than the sum of its proper divisors (28568208).

30242512 is a wasteful number, since it uses less digits than its factorization.

30242512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6970 (or 6964 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 30242512 is about 5499.3192305957. The cubic root of 30242512 is about 311.5582725555.

Adding to 30242512 its reverse (21524203), we get a palindrome (51766715).

The spelling of 30242512 in words is "thirty million, two hundred forty-two thousand, five hundred twelve".

Divisors: 1 2 4 8 16 283 566 1132 2264 4528 6679 13358 26716 53432 106864 1890157 3780314 7560628 15121256 30242512