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30225454 = 272308423
BaseRepresentation
bin111001101001…
…1010000101110
32002212121112021
41303103100232
530214203304
62555500354
7514624600
oct163232056
962777467
1030225454
1116074916
12a1576ba
1363537ac
14402b170
1529c0a54
hex1cd342e

30225454 has 12 divisors (see below), whose sum is σ = 52740504. Its totient is φ = 12953724.

The previous prime is 30225451. The next prime is 30225457. The reversal of 30225454 is 45452203.

It is an interprime number because it is at equal distance from previous prime (30225451) and next prime (30225457).

It is a super-2 number, since 2×302254542 = 1827156139012232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30225451) 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 5 ways as a sum of consecutive naturals, for example, 154114 + ... + 154309.

It is an arithmetic number, because the mean of its divisors is an integer number (4395042).

Almost surely, 230225454 is an apocalyptic number.

30225454 is a deficient number, since it is larger than the sum of its proper divisors (22515050).

30225454 is a wasteful number, since it uses less digits than its factorization.

30225454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308439 (or 308432 counting only the distinct ones).

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

The square root of 30225454 is about 5497.7680925990. The cubic root of 30225454 is about 311.4996843830.

Adding to 30225454 its reverse (45452203), we get a palindrome (75677657).

The spelling of 30225454 in words is "thirty million, two hundred twenty-five thousand, four hundred fifty-four".

Divisors: 1 2 7 14 49 98 308423 616846 2158961 4317922 15112727 30225454