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2120304012 = 2231941226819
BaseRepresentation
bin111111001100001…
…0100010110001100
312110202201121022020
41332120110112030
513320244212022
6550221250140
7103354200231
oct17630242614
95422647266
102120304012
11998946872
124b2103950
1327a379778
14161853788
15c622835c
hex7e61458c

2120304012 has 48 divisors (see below), whose sum is σ = 5334806400. Its totient is φ = 653235840.

The previous prime is 2120304001. The next prime is 2120304023. The reversal of 2120304012 is 2104030212.

It is an interprime number because it is at equal distance from previous prime (2120304001) and next prime (2120304023).

It is a super-2 number, since 2×21203040122 = 8991378206606592288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2120303982 and 2120304000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104062 + ... + 122757.

It is an arithmetic number, because the mean of its divisors is an integer number (111141800).

Almost surely, 22120304012 is an apocalyptic number.

It is an amenable number.

2120304012 is an abundant number, since it is smaller than the sum of its proper divisors (3214502388).

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

2120304012 is a wasteful number, since it uses less digits than its factorization.

2120304012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226886 (or 226884 counting only the distinct ones).

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

The square root of 2120304012 is about 46046.7589738952. The cubic root of 2120304012 is about 1284.6930609786.

Adding to 2120304012 its reverse (2104030212), we get a palindrome (4224334224).

The spelling of 2120304012 in words is "two billion, one hundred twenty million, three hundred four thousand, twelve".

Divisors: 1 2 3 4 6 12 19 38 41 57 76 82 114 123 164 228 246 492 779 1558 2337 3116 4674 9348 226819 453638 680457 907276 1360914 2721828 4309561 8619122 9299579 12928683 17238244 18599158 25857366 27898737 37198316 51714732 55797474 111594948 176692001 353384002 530076003 706768004 1060152006 2120304012