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2012011204 = 2272341181421
BaseRepresentation
bin111011111101100…
…1101101011000100
312012012221202111111
41313323031223010
513110033324304
6531352214404
7100600545610
oct16773155304
95165852444
102012011204
11942800885
1248199a404
13260ac1498
14151304340
15bb986704
hex77ecdac4

2012011204 has 96 divisors (see below), whose sum is σ = 4335432192. Its totient is φ = 798336000.

The previous prime is 2012011189. The next prime is 2012011207. The reversal of 2012011204 is 4021102102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2012011207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4778914 + ... + 4779334.

It is an arithmetic number, because the mean of its divisors is an integer number (45160752).

Almost surely, 22012011204 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 2012011204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2167716096).

2012011204 is an abundant number, since it is smaller than the sum of its proper divisors (2323420988).

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

2012011204 is a wasteful number, since it uses less digits than its factorization.

2012011204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2012011204 is about 44855.4478742549. The cubic root of 2012011204 is about 1262.4382123668.

Adding to 2012011204 its reverse (4021102102), we get a palindrome (6033113306).

The spelling of 2012011204 in words is "two billion, twelve million, eleven thousand, two hundred four".

Divisors: 1 2 4 7 14 23 28 41 46 82 92 161 164 181 287 322 362 421 574 644 724 842 943 1148 1267 1684 1886 2534 2947 3772 4163 5068 5894 6601 7421 8326 9683 11788 13202 14842 16652 17261 19366 26404 29141 29684 34522 38732 51947 58282 67781 69044 76201 103894 116564 120827 135562 152402 170683 207788 241654 271124 304804 341366 397003 483308 533407 682732 794006 1066814 1194781 1588012 1752623 2133628 2389562 2779021 3124241 3505246 4779124 5558042 6248482 7010492 11116084 12268361 12496964 21869687 24536722 43739374 49073444 71857543 87478748 143715086 287430172 503002801 1006005602 2012011204