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212002002020 = 22540163263927
BaseRepresentation
bin1100010101110001001…
…1011101010001100100
3202021012210011120002202
43011130103131101210
511433140003031040
6241220430354032
721213415166354
oct3053423352144
9667183146082
10212002002020
1181a0066aa36
123510705b918
1316cb7a05013
14a3920a0b64
1557abe8d015
hex315c4dd464

212002002020 has 24 divisors (see below), whose sum is σ = 445216976064. Its totient is φ = 84798368096.

The previous prime is 212002001987. The next prime is 212002002049. The reversal of 212002002020 is 20200200212.

It is a junction number, because it is equal to n+sod(n) for n = 212002001992 and 212002002010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671297 + ... + 935223.

It is an arithmetic number, because the mean of its divisors is an integer number (18550707336).

Almost surely, 2212002002020 is an apocalyptic number.

212002002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212002002020 is an abundant number, since it is smaller than the sum of its proper divisors (233214974044).

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

212002002020 is a wasteful number, since it uses less digits than its factorization.

212002002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304099 (or 304097 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 212002002020 its reverse (20200200212), we get a palindrome (232202202232).

The spelling of 212002002020 in words is "two hundred twelve billion, two million, two thousand, twenty".

Divisors: 1 2 4 5 10 20 40163 80326 160652 200815 263927 401630 527854 803260 1055708 1319635 2639270 5278540 10600100101 21200200202 42400400404 53000500505 106001001010 212002002020