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2012013030 = 235533893253
BaseRepresentation
bin111011111101100…
…1110000111100110
312012012221212000010
41313323032013212
513110033404110
6531352231050
7100600554126
oct16773160746
95165855003
102012013030
11942802195
1248199b486
13260ac2271
14151304c86
15bb987020
hex77ece1e6

2012013030 has 64 divisors (see below), whose sum is σ = 4934105280. Its totient is φ = 524898816.

The previous prime is 2012013023. The next prime is 2012013041. The reversal of 2012013030 is 303102102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2012012997 and 2012013015.

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, 616884 + ... + 620136.

It is an arithmetic number, because the mean of its divisors is an integer number (77095395).

Almost surely, 22012013030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2012013030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2467052640).

2012013030 is an abundant number, since it is smaller than the sum of its proper divisors (2922092250).

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

2012013030 is a wasteful number, since it uses less digits than its factorization.

2012013030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3705.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2012013030 is about 44855.4682285226. The cubic root of 2012013030 is about 1262.4385942751.

Adding to 2012013030 its reverse (303102102), we get a palindrome (2315115132).

The spelling of 2012013030 in words is "two billion, twelve million, thirteen thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 53 106 159 265 318 389 530 778 795 1167 1590 1945 2334 3253 3890 5835 6506 9759 11670 16265 19518 20617 32530 41234 48795 61851 97590 103085 123702 172409 206170 309255 344818 517227 618510 862045 1034454 1265417 1724090 2530834 2586135 3796251 5172270 6327085 7592502 12654170 18981255 37962510 67067101 134134202 201201303 335335505 402402606 670671010 1006006515 2012013030