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30352302020 = 22519471699457
BaseRepresentation
bin11100010001001000…
…110101111111000100
32220100022012200220002
4130101020311333010
5444130142131040
621535455100432
72123105211305
oct342110657704
986308180802
1030352302020
11119660a0827
125a70b11718
132b29376031
14167d1547ac
15bc9a19a15
hex711235fc4

30352302020 has 48 divisors (see below), whose sum is σ = 68522146560. Its totient is φ = 11257196544.

The previous prime is 30352301893. The next prime is 30352302037. The reversal of 30352302020 is 2020325303.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30352301983 and 30352302001.

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 15 ways as a sum of consecutive naturals, for example, 831869 + ... + 867588.

It is an arithmetic number, because the mean of its divisors is an integer number (1427544720).

Almost surely, 230352302020 is an apocalyptic number.

It is an amenable number.

30352302020 is an abundant number, since it is smaller than the sum of its proper divisors (38169844540).

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

30352302020 is a wasteful number, since it uses less digits than its factorization.

30352302020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699532 (or 1699530 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

Adding to 30352302020 its reverse (2020325303), we get a palindrome (32372627323).

The spelling of 30352302020 in words is "thirty billion, three hundred fifty-two million, three hundred two thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 47 76 94 95 188 190 235 380 470 893 940 1786 3572 4465 8930 17860 1699457 3398914 6797828 8497285 16994570 32289683 33989140 64579366 79874479 129158732 159748958 161448415 319497916 322896830 399372395 645793660 798744790 1517615101 1597489580 3035230202 6070460404 7588075505 15176151010 30352302020