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30254425 = 521210177
BaseRepresentation
bin111001101101…
…0010101011001
32002221002021021
41303122111121
530221120200
63000242441
7515105215
oct163322531
962832237
1030254425
1116094663
12a170421
136363a36
144037945
1529c941a
hex1cda559

30254425 has 6 divisors (see below), whose sum is σ = 37515518. Its totient is φ = 24203520.

The previous prime is 30254387. The next prime is 30254429. The reversal of 30254425 is 52445203.

It can be written as a sum of positive squares in 3 ways, for example, as 5890329 + 24364096 = 2427^2 + 4936^2 .

It is not a de Polignac number, because 30254425 - 29 = 30253913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 1210177 = 30254425 / (3 + 0 + 2 + 5 + 4 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30254425.

It is not an unprimeable number, because it can be changed into a prime (30254429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 605064 + ... + 605113.

Almost surely, 230254425 is an apocalyptic number.

It is an amenable number.

30254425 is a deficient number, since it is larger than the sum of its proper divisors (7261093).

30254425 is a wasteful number, since it uses less digits than its factorization.

30254425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210187 (or 1210182 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 30254425 is about 5500.4022580171. The cubic root of 30254425 is about 311.5991764158.

Adding to 30254425 its reverse (52445203), we get a palindrome (82699628).

The spelling of 30254425 in words is "thirty million, two hundred fifty-four thousand, four hundred twenty-five".

Divisors: 1 5 25 1210177 6050885 30254425