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200012201020 = 22537326811287
BaseRepresentation
bin1011101001000110100…
…1111111110000111100
3201010021012020120011001
42322101221333300330
511234111110413040
6231515003340044
720310326441332
oct2722151776074
9633235216131
10200012201020
1177908744a95
123291b821624
1315b26a01808
149975979b52
15530958459a
hex2e91a7fc3c

200012201020 has 24 divisors (see below), whose sum is σ = 421151711904. Its totient is φ = 79790387136.

The previous prime is 200012201003. The next prime is 200012201029. The reversal of 200012201020 is 20102210002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 200012200988 and 200012201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200012201029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13398184 + ... + 13413103.

It is an arithmetic number, because the mean of its divisors is an integer number (17547987996).

Almost surely, 2200012201020 is an apocalyptic number.

200012201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200012201020 is an abundant number, since it is smaller than the sum of its proper divisors (221139510884).

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

200012201020 is a wasteful number, since it uses less digits than its factorization.

200012201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26811669 (or 26811667 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 200012201020 its reverse (20102210002), we get a palindrome (220114411022).

The spelling of 200012201020 in words is "two hundred billion, twelve million, two hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 373 746 1492 1865 3730 7460 26811287 53622574 107245148 134056435 268112870 536225740 10000610051 20001220102 40002440204 50003050255 100006100510 200012201020