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30500055340 = 22537115335747
BaseRepresentation
bin11100011001111100…
…011110100100101100
32220201121020100100021
4130121330132210230
5444431003232330
622002254011524
72126551123066
oct343174364454
986647210307
1030500055340
1111a31539007
125ab24a6ba4
132b50b69431
141694a16736
15bd79a367a
hex719f1e92c

30500055340 has 48 divisors (see below), whose sum is σ = 65840094432. Its totient is φ = 11859664896.

The previous prime is 30500055307. The next prime is 30500055361. The reversal of 30500055340 is 4355000503.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 835347 + ... + 871093.

It is an arithmetic number, because the mean of its divisors is an integer number (1371668634).

Almost surely, 230500055340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30500055340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32920047216).

30500055340 is an abundant number, since it is smaller than the sum of its proper divisors (35340039092).

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

30500055340 is a wasteful number, since it uses less digits than its factorization.

30500055340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36946 (or 36944 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 25.

Adding to 30500055340 its reverse (4355000503), we get a palindrome (34855055843).

The spelling of 30500055340 in words is "thirty billion, five hundred million, fifty-five thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 1153 2306 4612 5765 11530 23060 35747 42661 71494 85322 142988 170644 178735 213305 357470 426610 714940 853220 1322639 2645278 5290556 6613195 13226390 26452780 41216291 82432582 164865164 206081455 412162910 824325820 1525002767 3050005534 6100011068 7625013835 15250027670 30500055340