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18230529235 = 561239449557
BaseRepresentation
bin10000111110100111…
…111100110011010011
31202001111221211200111
4100332213330303103
5244314003413420
612212555302151
71213524641002
oct207647746323
952044854614
1018230529235
117805727496
12364944a957
131946c16709
14c4d2b8c39
1571a74345a
hex43e9fccd3

18230529235 has 32 divisors (see below), whose sum is σ = 22418208000. Its totient is φ = 14227906560.

The previous prime is 18230529209. The next prime is 18230529253. The reversal of 18230529235 is 53292503281.

It is a happy number.

It is not a de Polignac number, because 18230529235 - 215 = 18230496467 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32729577 + ... + 32730133.

It is an arithmetic number, because the mean of its divisors is an integer number (700569000).

Almost surely, 218230529235 is an apocalyptic number.

18230529235 is a deficient number, since it is larger than the sum of its proper divisors (4187678765).

18230529235 is a wasteful number, since it uses less digits than its factorization.

18230529235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 18230529235 in words is "eighteen billion, two hundred thirty million, five hundred twenty-nine thousand, two hundred thirty-five".

Divisors: 1 5 61 239 305 449 557 1195 2245 2785 14579 27389 33977 72895 107311 133123 136945 169885 250093 536555 665615 1250465 6545971 8120503 15255673 32729855 40602515 59772227 76278365 298861135 3646105847 18230529235