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30123303132 = 22313632330539
BaseRepresentation
bin11100000011011111…
…010010000011011100
32212202100022100110210
4130003133102003130
5443143031200012
621501034532420
72114324565126
oct340337220334
985670270423
1030123303132
111185890154a
125a08297110
132ac0aa7630
14165a984216
15bb488323c
hex7037d20dc

30123303132 has 48 divisors (see below), whose sum is σ = 75708904320. Its totient is φ = 9266939328.

The previous prime is 30123303073. The next prime is 30123303143. The reversal of 30123303132 is 23130332103.

It is a super-2 number, since 2×301233031322 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30123303099 and 30123303108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 971119 + ... + 1001657.

It is an arithmetic number, because the mean of its divisors is an integer number (1577268840).

Almost surely, 230123303132 is an apocalyptic number.

It is an amenable number.

30123303132 is an abundant number, since it is smaller than the sum of its proper divisors (45585601188).

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

30123303132 is a wasteful number, since it uses less digits than its factorization.

30123303132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36882 (or 36880 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 30123303132 its reverse (23130332103), we get a palindrome (53253635235).

The spelling of 30123303132 in words is "thirty billion, one hundred twenty-three million, three hundred three thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 6323 12646 18969 25292 30539 37938 61078 75876 82199 91617 122156 164398 183234 246597 328796 366468 397007 493194 794014 986388 1191021 1588028 2382042 4764084 193098097 386196194 579294291 772392388 1158588582 2317177164 2510275261 5020550522 7530825783 10041101044 15061651566 30123303132