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12117286784230 = 251378844734879
BaseRepresentation
bin1011000001010100011010…
…0100110000110011100110
31120220101211112212001221221
42300111012210300303212
53042012200404043410
641434334340530554
72360305443146605
oct260250644606346
946811745761857
1012117286784230
113951a04546841
1214384b29b0a5a
1369b869744024
142dc6a0851a3c
151602e9ad04da
hexb0546930ce6

12117286784230 has 16 divisors (see below), whose sum is σ = 21970321441920. Its totient is φ = 4811535773632.

The previous prime is 12117286784227. The next prime is 12117286784261. The reversal of 12117286784230 is 3248768271121.

It is a happy number.

It is a super-2 number, since 2×121172867842302 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 4422366070 + ... + 4422368809.

It is an arithmetic number, because the mean of its divisors is an integer number (1373145090120).

Almost surely, 212117286784230 is an apocalyptic number.

12117286784230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12117286784230 is a deficient number, since it is larger than the sum of its proper divisors (9853034657690).

12117286784230 is a wasteful number, since it uses less digits than its factorization.

12117286784230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8844735023.

The product of its (nonzero) digits is 1806336, while the sum is 52.

The spelling of 12117286784230 in words is "twelve trillion, one hundred seventeen billion, two hundred eighty-six million, seven hundred eighty-four thousand, two hundred thirty".

Divisors: 1 2 5 10 137 274 685 1370 8844734879 17689469758 44223674395 88447348790 1211728678423 2423457356846 6058643392115 12117286784230