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30223131330 = 2357233617681
BaseRepresentation
bin11100001001011100…
…000110001011000010
32220000022011011000110
4130021130012023002
5443344110200310
621515002332150
72116646243340
oct341134061302
986008134013
1030223131330
11118aa195997
125a357ba056
132b0868ab82
141669d2c990
15bbd501d20
hex7097062c2

30223131330 has 64 divisors (see below), whose sum is σ = 83253650688. Its totient is φ = 6878484480.

The previous prime is 30223131293. The next prime is 30223131331. The reversal of 30223131330 is 3313132203.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 30223131297 and 30223131306.

It is not an unprimeable number, because it can be changed into a prime (30223131331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 259911 + ... + 357770.

It is an arithmetic number, because the mean of its divisors is an integer number (1300838292).

Almost surely, 230223131330 is an apocalyptic number.

30223131330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30223131330 is an abundant number, since it is smaller than the sum of its proper divisors (53030519358).

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

30223131330 is a wasteful number, since it uses less digits than its factorization.

30223131330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617931.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 30223131330 its reverse (3313132203), we get a palindrome (33536263533).

The spelling of 30223131330 in words is "thirty billion, two hundred twenty-three million, one hundred thirty-one thousand, three hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 233 466 699 1165 1398 1631 2330 3262 3495 4893 6990 8155 9786 16310 24465 48930 617681 1235362 1853043 3088405 3706086 4323767 6176810 8647534 9265215 12971301 18530430 21618835 25942602 43237670 64856505 129713010 143919673 287839346 431759019 719598365 863518038 1007437711 1439196730 2014875422 2158795095 3022313133 4317590190 5037188555 6044626266 10074377110 15111565665 30223131330