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30030030311 = 129379232109
BaseRepresentation
bin11011111101111011…
…011110010111100111
32212111211210121012212
4123331323132113213
5443000141432221
621443503434035
72112113021531
oct337573362747
985454717185
1030030030311
1111810195276
1259a0bb591b
132aa767ab08
14164c424851
15bab5abb5b
hex6fdede5e7

30030030311 has 4 divisors (see below), whose sum is σ = 30030391800. Its totient is φ = 30029668824.

The previous prime is 30030030301. The next prime is 30030030337. The reversal of 30030030311 is 11303003003.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30030030311 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 (30030030301) 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, 13325 + ... + 245433.

It is an arithmetic number, because the mean of its divisors is an integer number (7507597950).

Almost surely, 230030030311 is an apocalyptic number.

30030030311 is a deficient number, since it is larger than the sum of its proper divisors (361489).

30030030311 is a wasteful number, since it uses less digits than its factorization.

30030030311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361488.

The product of its (nonzero) digits is 81, while the sum is 14.

Adding to 30030030311 its reverse (11303003003), we get a palindrome (41333033314).

The spelling of 30030030311 in words is "thirty billion, thirty million, thirty thousand, three hundred eleven".

Divisors: 1 129379 232109 30030030311