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30413333 = 73416621
BaseRepresentation
bin111010000000…
…1001000010101
32010020011020202
41310001020111
530241211313
63003510245
7516336416
oct164011025
963204222
1030413333
1116192a95
12a228385
1363bb172
14407980d
152a0b558
hex1d01215

30413333 has 4 divisors (see below), whose sum is σ = 30830028. Its totient is φ = 29996640.

The previous prime is 30413303. The next prime is 30413351. The reversal of 30413333 is 33331403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33331403 = 74761629.

It can be written as a sum of positive squares in 2 ways, for example, as 18037009 + 12376324 = 4247^2 + 3518^2 .

It is a cyclic number.

It is not a de Polignac number, because 30413333 - 26 = 30413269 is a prime.

It is a Duffinian number.

30413333 is a modest number, since divided by 3333 gives 3041 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30413303) 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, 208238 + ... + 208383.

It is an arithmetic number, because the mean of its divisors is an integer number (7707507).

Almost surely, 230413333 is an apocalyptic number.

It is an amenable number.

30413333 is a deficient number, since it is larger than the sum of its proper divisors (416695).

30413333 is an equidigital number, since it uses as much as digits as its factorization.

30413333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416694.

The product of its (nonzero) digits is 972, while the sum is 20.

The square root of 30413333 is about 5514.8284651474. The cubic root of 30413333 is about 312.1437707165.

Adding to 30413333 its reverse (33331403), we get a palindrome (63744736).

The spelling of 30413333 in words is "thirty million, four hundred thirteen thousand, three hundred thirty-three".

Divisors: 1 73 416621 30413333