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30123112310 = 25151163122387
BaseRepresentation
bin11100000011011110…
…100011011101110110
32212202022221122201022
4130003132203131312
5443143004043220
621501030501142
72114323141604
oct340336433566
985668848638
1030123112310
1111858791145
125a082047b2
132ac0a3b815
14165a934874
15bb4846925
hex7037a3776

30123112310 has 32 divisors (see below), whose sum is σ = 54915985152. Its totient is φ = 11895919200.

The previous prime is 30123112307. The next prime is 30123112321. The reversal of 30123112310 is 1321132103.

It is a super-2 number, since 2×301231123102 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 184937 + ... + 307323.

It is an arithmetic number, because the mean of its divisors is an integer number (1716124536).

Almost surely, 230123112310 is an apocalyptic number.

30123112310 is a deficient number, since it is larger than the sum of its proper divisors (24792872842).

30123112310 is a wasteful number, since it uses less digits than its factorization.

30123112310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122708.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30123112310 its reverse (1321132103), we get a palindrome (31444244413).

The spelling of 30123112310 in words is "thirty billion, one hundred twenty-three million, one hundred twelve thousand, three hundred ten".

Divisors: 1 2 5 10 151 163 302 326 755 815 1510 1630 24613 49226 122387 123065 244774 246130 611935 1223870 18480437 19949081 36960874 39898162 92402185 99745405 184804370 199490810 3012311231 6024622462 15061556155 30123112310