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30200023020 = 22354157121081
BaseRepresentation
bin11100001000000011…
…111100011111101100
32212221200200010101010
4130020003330133230
5443322201214040
621512415145220
72116245650226
oct341003743754
985850603333
1030200023020
1111898142312
125a29b15210
132b03959a0b
141666c35416
15bbb489e80
hex7080fc7ec

30200023020 has 48 divisors (see below), whose sum is σ = 84581104608. Its totient is φ = 8051335680.

The previous prime is 30200022977. The next prime is 30200023097. The reversal of 30200023020 is 2032000203.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 30200022987 and 30200023005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188880 + ... + 309960.

It is an arithmetic number, because the mean of its divisors is an integer number (1762106346).

Almost surely, 230200023020 is an apocalyptic number.

30200023020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30200023020 is an abundant number, since it is smaller than the sum of its proper divisors (54381081588).

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

30200023020 is a wasteful number, since it uses less digits than its factorization.

30200023020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125250 (or 125248 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 30200023020 its reverse (2032000203), we get a palindrome (32232023223).

The spelling of 30200023020 in words is "thirty billion, two hundred million, twenty-three thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 4157 8314 12471 16628 20785 24942 41570 49884 62355 83140 121081 124710 242162 249420 363243 484324 605405 726486 1210810 1452972 1816215 2421620 3632430 7264860 503333717 1006667434 1510001151 2013334868 2516668585 3020002302 5033337170 6040004604 7550005755 10066674340 15100011510 30200023020