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21210130010 = 252519538867
BaseRepresentation
bin10011110000001110…
…001110011001011010
32000202011121020112202
4103300032032121122
5321414243130020
613424354410202
71350415062506
oct236016163132
960664536482
1021210130010
118aa4624673
12413b290962
132000307bb4
141052cd1306
15842107e75
hex4f038e65a

21210130010 has 32 divisors (see below), whose sum is σ = 38374886592. Its totient is φ = 8440432000.

The previous prime is 21210130003. The next prime is 21210130021. The reversal of 21210130010 is 1003101212.

21210130010 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212101300102 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21210129973 and 21210130000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2387597 + ... + 2396463.

It is an arithmetic number, because the mean of its divisors is an integer number (1199215206).

Almost surely, 221210130010 is an apocalyptic number.

21210130010 is a deficient number, since it is larger than the sum of its proper divisors (17164756582).

21210130010 is a wasteful number, since it uses less digits than its factorization.

21210130010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10078.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 21210130010 its reverse (1003101212), we get a palindrome (22213231222).

The spelling of 21210130010 in words is "twenty-one billion, two hundred ten million, one hundred thirty thousand, ten".

Divisors: 1 2 5 10 251 502 953 1255 1906 2510 4765 8867 9530 17734 44335 88670 239203 478406 1196015 2225617 2392030 4451234 8450251 11128085 16900502 22256170 42251255 84502510 2121013001 4242026002 10605065005 21210130010