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30311023308 = 22320261124669
BaseRepresentation
bin11100001110101011…
…011000001011001100
32220020102112112010220
4130032223120023030
5444034110221213
621531422231340
72122064306226
oct341653301314
986212475126
1030311023308
1111944867495
125a5b125550
132b20952467
14167788b416
15bc60b3e23
hex70ead82cc

30311023308 has 24 divisors (see below), whose sum is σ = 70729779120. Its totient is φ = 10103094720.

The previous prime is 30311023279. The next prime is 30311023313. The reversal of 30311023308 is 80332011303.

It is an unprimeable number.

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, 180798 + ... + 305466.

It is an arithmetic number, because the mean of its divisors is an integer number (2947074130).

Almost surely, 230311023308 is an apocalyptic number.

It is an amenable number.

30311023308 is an abundant number, since it is smaller than the sum of its proper divisors (40418755812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30311023308 is a wasteful number, since it uses less digits than its factorization.

30311023308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144937 (or 144935 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The spelling of 30311023308 in words is "thirty billion, three hundred eleven million, twenty-three thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 20261 40522 60783 81044 121566 124669 243132 249338 374007 498676 748014 1496028 2525918609 5051837218 7577755827 10103674436 15155511654 30311023308