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30063421 = 173173777
BaseRepresentation
bin111001010101…
…1101100111101
32002120101021001
41302223230331
530144012141
62552210301
7513351313
oct162535475
962511231
1030063421
1115a74103
12a099991
1362c7b0b
143dc80b3
15298ca31
hex1cabb3d

30063421 has 4 divisors (see below), whose sum is σ = 30237372. Its totient is φ = 29889472.

The previous prime is 30063419. The next prime is 30063443. The reversal of 30063421 is 12436003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14175225 + 15888196 = 3765^2 + 3986^2 .

It is a cyclic number.

It is not a de Polignac number, because 30063421 - 21 = 30063419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39063421) 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, 86716 + ... + 87061.

It is an arithmetic number, because the mean of its divisors is an integer number (7559343).

Almost surely, 230063421 is an apocalyptic number.

It is an amenable number.

30063421 is a deficient number, since it is larger than the sum of its proper divisors (173951).

30063421 is a wasteful number, since it uses less digits than its factorization.

30063421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173950.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 30063421 is about 5483.0120371927. The cubic root of 30063421 is about 310.9420562500.

Adding to 30063421 its reverse (12436003), we get a palindrome (42499424).

The spelling of 30063421 in words is "thirty million, sixty-three thousand, four hundred twenty-one".

Divisors: 1 173 173777 30063421