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30310321120 = 255213188897
BaseRepresentation
bin11100001110101000…
…101100101111100000
32220020101012211220221
4130032220230233200
5444033420233440
621531355212424
72122055323102
oct341650545740
986211184827
1030310321120
1111944427972
125a5aa47114
132b20767971
141677747572
15bc5ec5d4a
hex70ea2cbe0

30310321120 has 48 divisors (see below), whose sum is σ = 71642542608. Its totient is φ = 12118302720.

The previous prime is 30310321117. The next prime is 30310321141. The reversal of 30310321120 is 2112301303.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 30310321094 and 30310321103.

It is a congruent number.

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, 296512 + ... + 385408.

It is an arithmetic number, because the mean of its divisors is an integer number (1492552971).

Almost surely, 230310321120 is an apocalyptic number.

It is an amenable number.

30310321120 is an abundant number, since it is smaller than the sum of its proper divisors (41332221488).

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

30310321120 is a wasteful number, since it uses less digits than its factorization.

30310321120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91043 (or 91035 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30310321120 its reverse (2112301303), we get a palindrome (32422622423).

The spelling of 30310321120 in words is "thirty billion, three hundred ten million, three hundred twenty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 2131 4262 8524 10655 17048 21310 34096 42620 68192 85240 88897 170480 177794 340960 355588 444485 711176 888970 1422352 1777940 2844704 3555880 7111760 14223520 189439507 378879014 757758028 947197535 1515516056 1894395070 3031032112 3788790140 6062064224 7577580280 15155160560 30310321120