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30123344052 = 22324583182579
BaseRepresentation
bin11100000011011111…
…011100000010110100
32212202100101102121100
4130003133130002310
5443143034002202
621501035450100
72114325125334
oct340337340264
985670342540
1030123344052
111185892a26a
125a082b6930
132ac0ac0149
14165a9950c4
15bb489041c
hex7037dc0b4

30123344052 has 36 divisors (see below), whose sum is σ = 76162151520. Its totient is φ = 10038868752.

The previous prime is 30123344039. The next prime is 30123344057. The reversal of 30123344052 is 25044332103.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123344057) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 73699 + ... + 256277.

It is an arithmetic number, because the mean of its divisors is an integer number (2115615320).

Almost surely, 230123344052 is an apocalyptic number.

It is an amenable number.

30123344052 is an abundant number, since it is smaller than the sum of its proper divisors (46038807468).

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

30123344052 is a wasteful number, since it uses less digits than its factorization.

30123344052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187172 (or 187167 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 30123344052 its reverse (25044332103), we get a palindrome (55167676155).

The spelling of 30123344052 in words is "thirty billion, one hundred twenty-three million, three hundred forty-four thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 4583 9166 13749 18332 27498 41247 54996 82494 164988 182579 365158 547737 730316 1095474 1643211 2190948 3286422 6572844 836759557 1673519114 2510278671 3347038228 5020557342 7530836013 10041114684 15061672026 30123344052