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30343113020 = 22511797173053
BaseRepresentation
bin11100010000100101…
…110010100100111100
32220022122220211221202
4130100211302210330
5444120314104040
621534530115032
72122634130233
oct342045624474
986278824852
1030343113020
1111960994a10
125a69a1ba78
132b274a965c
14167bc41b1a
15bc8d02015
hex71097293c

30343113020 has 48 divisors (see below), whose sum is σ = 69600934368. Its totient is φ = 11019951360.

The previous prime is 30343113001. The next prime is 30343113023. The reversal of 30343113020 is 2031134303.

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 = 30343112983 and 30343113001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30343113023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88814 + ... + 261866.

It is an arithmetic number, because the mean of its divisors is an integer number (1450019466).

Almost surely, 230343113020 is an apocalyptic number.

It is an amenable number.

30343113020 is an abundant number, since it is smaller than the sum of its proper divisors (39257821348).

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

30343113020 is a wasteful number, since it uses less digits than its factorization.

30343113020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173870 (or 173868 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30343113020 its reverse (2031134303), we get a palindrome (32374247323).

The spelling of 30343113020 in words is "thirty billion, three hundred forty-three million, one hundred thirteen thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 797 1594 3188 3985 7970 8767 15940 17534 35068 43835 87670 173053 175340 346106 692212 865265 1730530 1903583 3461060 3807166 7614332 9517915 19035830 38071660 137923241 275846482 551692964 689616205 1379232410 1517155651 2758464820 3034311302 6068622604 7585778255 15171556510 30343113020