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7103020212 = 2232281797881
BaseRepresentation
bin1101001110101111…
…10111110010110100
3200100000120210221200
412213113313302310
5104021333121322
63132454212500
7341006450511
oct64727676264
920300523850
107103020212
113015519242
121462954130
13892766352
144b54d6308
152b88b88ac
hex1a75f7cb4

7103020212 has 72 divisors (see below), whose sum is σ = 18061839432. Its totient is φ = 2353612800.

The previous prime is 7103020201. The next prime is 7103020229. The reversal of 7103020212 is 2120203017.

It can be written as a sum of positive squares in 4 ways, for example, as 613751076 + 6489269136 = 24774^2 + 80556^2 .

It is a super-2 number, since 2×71030202122 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8062012 + ... + 8062892.

It is an arithmetic number, because the mean of its divisors is an integer number (250858881).

Almost surely, 27103020212 is an apocalyptic number.

It is an amenable number.

7103020212 is an abundant number, since it is smaller than the sum of its proper divisors (10958819220).

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

7103020212 is a wasteful number, since it uses less digits than its factorization.

7103020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969 (or 1964 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 7103020212 is about 84279.4174873083. The cubic root of 7103020212 is about 1922.2698318142.

Adding to 7103020212 its reverse (2120203017), we get a palindrome (9223223229).

The spelling of 7103020212 in words is "seven billion, one hundred three million, twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 281 562 797 843 881 1124 1594 1686 1762 2391 2529 2643 3188 3372 3524 4782 5058 5286 7173 7929 9564 10116 10572 14346 15858 28692 31716 223957 247561 447914 495122 671871 702157 742683 895828 990244 1343742 1404314 1485366 2015613 2106471 2228049 2687484 2808628 2970732 4031226 4212942 4456098 6319413 8062452 8425884 8912196 12638826 25277652 197306117 394612234 591918351 789224468 1183836702 1775755053 2367673404 3551510106 7103020212