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30407213 = 53678563
BaseRepresentation
bin111001111111…
…1101000101101
32010012211212002
41303333220231
530241012323
63003422045
7516312524
oct163775055
963184762
1030407213
1116189431
12a224925
1363b8445
1440774bb
152a09828
hex1cffa2d

30407213 has 8 divisors (see below), whose sum is σ = 31447008. Its totient is φ = 29384784.

The previous prime is 30407197. The next prime is 30407227. The reversal of 30407213 is 31270403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30407213 - 24 = 30407197 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 (30407413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731 + ... + 7832.

It is an arithmetic number, because the mean of its divisors is an integer number (3930876).

Almost surely, 230407213 is an apocalyptic number.

It is an amenable number.

30407213 is a deficient number, since it is larger than the sum of its proper divisors (1039795).

30407213 is an equidigital number, since it uses as much as digits as its factorization.

30407213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8683.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 30407213 is about 5514.2735695647. The cubic root of 30407213 is about 312.1228320049.

Adding to 30407213 its reverse (31270403), we get a palindrome (61677616).

The spelling of 30407213 in words is "thirty million, four hundred seven thousand, two hundred thirteen".

Divisors: 1 53 67 3551 8563 453839 573721 30407213