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2122212030 = 235194578147
BaseRepresentation
bin111111001111110…
…0110001010111110
312110220022112121120
41332133212022332
513321241241110
6550330211410
7103406335041
oct17637461276
95426275546
102122212030
11999a2a344
124b2883b66
1327a897083
14161bccc58
15c64a3870
hex7e7e62be

2122212030 has 64 divisors (see below), whose sum is σ = 5373768960. Its totient is φ = 534898944.

The previous prime is 2122212013. The next prime is 2122212041. The reversal of 2122212030 is 302122212.

2122212030 = 206002 + 206012 + ... + 206042.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256417 + ... + 264563.

It is an arithmetic number, because the mean of its divisors is an integer number (83965140).

Almost surely, 22122212030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2122212030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2686884480).

2122212030 is an abundant number, since it is smaller than the sum of its proper divisors (3251556930).

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

2122212030 is a wasteful number, since it uses less digits than its factorization.

2122212030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8633.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2122212030 is about 46067.4725809871. The cubic root of 2122212030 is about 1285.0783017384.

Adding to 2122212030 its reverse (302122212), we get a palindrome (2424334242).

The spelling of 2122212030 in words is "two billion, one hundred twenty-two million, two hundred twelve thousand, thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 457 570 914 1371 2285 2742 4570 6855 8147 8683 13710 16294 17366 24441 26049 40735 43415 48882 52098 81470 86830 122205 130245 154793 244410 260490 309586 464379 773965 928758 1547930 2321895 3723179 4643790 7446358 11169537 18615895 22339074 37231790 55847685 70740401 111695370 141480802 212221203 353702005 424442406 707404010 1061106015 2122212030