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30128760055110 = 2351059979474721
BaseRepresentation
bin1101101100110111001100…
…00010100110010101000110
310221200021121002110021111010
412312123212002212111012
512422112200033230420
6144024543350023050
76226505521656663
oct666334602462506
9127607532407433
1030128760055110
119666598661242
1234671a4947a86
1313a718c474b82
1476234dcc8a6a
15373ab8d614e0
hex1b66e60a6546

30128760055110 has 32 divisors (see below), whose sum is σ = 72309713944032. Its totient is φ = 8034259368960.

The previous prime is 30128760055091. The next prime is 30128760055111. The reversal of 30128760055110 is 1155006782103.

It is a super-2 number, since 2×301287600551102 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30128760055111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1557451 + ... + 7917270.

It is an arithmetic number, because the mean of its divisors is an integer number (2259678560751).

Almost surely, 230128760055110 is an apocalyptic number.

30128760055110 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30128760055110 is an abundant number, since it is smaller than the sum of its proper divisors (42180953888922).

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

30128760055110 is a wasteful number, since it uses less digits than its factorization.

30128760055110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9580728.

The product of its (nonzero) digits is 50400, while the sum is 39.

The spelling of 30128760055110 in words is "thirty trillion, one hundred twenty-eight billion, seven hundred sixty million, fifty-five thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 30 105997 211994 317991 529985 635982 1059970 1589955 3179910 9474721 18949442 28424163 47373605 56848326 94747210 142120815 284241630 1004292001837 2008584003674 3012876005511 5021460009185 6025752011022 10042920018370 15064380027555 30128760055110