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23120220310 = 2511239138427
BaseRepresentation
bin10101100010000100…
…101001000010010110
32012200021202212211221
4111202010221002112
5334322234022220
614342110320554
71445640426055
oct254204510226
965607685757
1023120220310
1198948417a0
124592ab915a
132245c62445
14119486439c
15904b5a9aa
hex562129096

23120220310 has 32 divisors (see below), whose sum is σ = 47373610752. Its totient is φ = 8041814880.

The previous prime is 23120220301. The next prime is 23120220323. The reversal of 23120220310 is 1302202132.

It is a super-2 number, since 2×231202203102 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4566684 + ... + 4571743.

It is an arithmetic number, because the mean of its divisors is an integer number (1480425336).

Almost surely, 223120220310 is an apocalyptic number.

23120220310 is an abundant number, since it is smaller than the sum of its proper divisors (24253390442).

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

23120220310 is a wasteful number, since it uses less digits than its factorization.

23120220310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9138468.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 23120220310 its reverse (1302202132), we get a palindrome (24422422442).

The spelling of 23120220310 in words is "twenty-three billion, one hundred twenty million, two hundred twenty thousand, three hundred ten".

Divisors: 1 2 5 10 11 22 23 46 55 110 115 230 253 506 1265 2530 9138427 18276854 45692135 91384270 100522697 201045394 210183821 420367642 502613485 1005226970 1050919105 2101838210 2312022031 4624044062 11560110155 23120220310