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20003202212 = 22723229135637
BaseRepresentation
bin10010101000010010…
…001010010010100100
31220122001112221212012
4102220102022102210
5311431304432322
613104522013352
71305461261540
oct225022122244
956561487765
1020003202212
118535316984
123a63047258
131b6a259336
14d7a8baa20
157c119eae2
hex4a848a4a4

20003202212 has 48 divisors (see below), whose sum is σ = 41928418560. Its totient is φ = 8164202112.

The previous prime is 20003202187. The next prime is 20003202217. The reversal of 20003202212 is 21220230002.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (20003202217) 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, 79658 + ... + 215294.

It is an arithmetic number, because the mean of its divisors is an integer number (873508720).

Almost surely, 220003202212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20003202212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20964209280).

20003202212 is an abundant number, since it is smaller than the sum of its proper divisors (21925216348).

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

20003202212 is a wasteful number, since it uses less digits than its factorization.

20003202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135900 (or 135898 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20003202212 its reverse (21220230002), we get a palindrome (41223432214).

The spelling of 20003202212 in words is "twenty billion, three million, two hundred two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 23 28 46 92 161 229 322 458 644 916 1603 3206 5267 6412 10534 21068 36869 73738 135637 147476 271274 542548 949459 1898918 3119651 3797836 6239302 12478604 21837557 31060873 43675114 62121746 87350228 124243492 217426111 434852222 714400079 869704444 1428800158 2857600316 5000800553 10001601106 20003202212