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305425124 = 2276356281
BaseRepresentation
bin10010001101000…
…110101011100100
3210021201012111122
4102031012223210
51111142100444
650150153112
710366033154
oct2215065344
9707635448
10305425124
1114744a464
1286352798
134b37a234
142c7c6764
151bc314ee
hex12346ae4

305425124 has 6 divisors (see below), whose sum is σ = 534493974. Its totient is φ = 152712560.

The previous prime is 305425103. The next prime is 305425151. The reversal of 305425124 is 421524503.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 247055524 + 58369600 = 15718^2 + 7640^2 .

It is a junction number, because it is equal to n+sod(n) for n = 305425093 and 305425102.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 38178137 + ... + 38178144.

It is an arithmetic number, because the mean of its divisors is an integer number (89082329).

Almost surely, 2305425124 is an apocalyptic number.

It is an amenable number.

305425124 is a deficient number, since it is larger than the sum of its proper divisors (229068850).

305425124 is a wasteful number, since it uses less digits than its factorization.

305425124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76356285 (or 76356283 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 305425124 is about 17476.4162230132. The cubic root of 305425124 is about 673.4441524841. Note that the first 3 decimals are identical.

Adding to 305425124 its reverse (421524503), we get a palindrome (726949627).

The spelling of 305425124 in words is "three hundred five million, four hundred twenty-five thousand, one hundred twenty-four".

Divisors: 1 2 4 76356281 152712562 305425124