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30130142120 = 2351357942581
BaseRepresentation
bin11100000011111001…
…010111101110101000
32212202211011210210122
4130003321113232220
5443201304021440
621501441302412
72114436660641
oct340371275650
985684153718
1030130142120
1111861752801
125a0a634a08
132ac2330480
14165b8446c8
15bb52847b5
hex703e57ba8

30130142120 has 32 divisors (see below), whose sum is σ = 73007653320. Its totient is φ = 11124975360.

The previous prime is 30130142113. The next prime is 30130142149. The reversal of 30130142120 is 2124103103.

It can be written as a sum of positive squares in 4 ways, for example, as 20728512676 + 9401629444 = 143974^2 + 96962^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28970771 + ... + 28971810.

Almost surely, 230130142120 is an apocalyptic number.

It is an amenable number.

30130142120 is an abundant number, since it is smaller than the sum of its proper divisors (42877511200).

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

30130142120 is a wasteful number, since it uses less digits than its factorization.

30130142120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57942605 (or 57942601 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30130142120 its reverse (2124103103), we get a palindrome (32254245223).

The spelling of 30130142120 in words is "thirty billion, one hundred thirty million, one hundred forty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 57942581 115885162 231770324 289712905 463540648 579425810 753253553 1158851620 1506507106 2317703240 3013014212 3766267765 6026028424 7532535530 15065071060 30130142120