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200430020 = 22572949367
BaseRepresentation
bin10111111001001…
…01000111000100
3111222010220022002
423330211013010
5402302230040
631515524432
74652425040
oct1374450704
9458126262
10200430020
11a315704a
1257159718
13326a7c5b
141c895020
15128e1a15
hexbf251c4

200430020 has 48 divisors (see below), whose sum is σ = 497629440. Its totient is φ = 66347904.

The previous prime is 200430019. The next prime is 200430029. The reversal of 200430020 is 20034002.

200430020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 200429983 and 200430010.

It is not an unprimeable number, because it can be changed into a prime (200430029) 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, 20624 + ... + 28743.

It is an arithmetic number, because the mean of its divisors is an integer number (10367280).

Almost surely, 2200430020 is an apocalyptic number.

200430020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200430020 is an abundant number, since it is smaller than the sum of its proper divisors (297199420).

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

200430020 is a wasteful number, since it uses less digits than its factorization.

200430020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49412 (or 49410 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 200430020 is about 14157.3309631441. The cubic root of 200430020 is about 585.2223763139. Note that the first 3 decimals are identical.

Adding to 200430020 its reverse (20034002), we get a palindrome (220464022).

The spelling of 200430020 in words is "two hundred million, four hundred thirty thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 29 35 58 70 116 140 145 203 290 406 580 812 1015 2030 4060 49367 98734 197468 246835 345569 493670 691138 987340 1382276 1431643 1727845 2863286 3455690 5726572 6911380 7158215 10021501 14316430 20043002 28632860 40086004 50107505 100215010 200430020