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18069476469 = 3114326594789
BaseRepresentation
bin10000110101000001…
…100101010001110101
31201122021220111211020
4100311001211101311
5244001241221334
612145003331353
71206531005262
oct206501452165
951567814736
1018069476469
117732826130
123603520b59
13191c747a15
14c35b54269
1570b52de49
hex435065475

18069476469 has 32 divisors (see below), whose sum is σ = 26909836800. Its totient is φ = 10690263360.

The previous prime is 18069476429. The next prime is 18069476483. The reversal of 18069476469 is 96467496081.

It is not a de Polignac number, because 18069476469 - 227 = 17935258741 is a prime.

It is a super-2 number, since 2×180694764692 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18069476429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3770727 + ... + 3775515.

It is an arithmetic number, because the mean of its divisors is an integer number (840932400).

Almost surely, 218069476469 is an apocalyptic number.

It is an amenable number.

18069476469 is a deficient number, since it is larger than the sum of its proper divisors (8840360331).

18069476469 is a wasteful number, since it uses less digits than its factorization.

18069476469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7505.

The product of its (nonzero) digits is 15676416, while the sum is 60.

The spelling of 18069476469 in words is "eighteen billion, sixty-nine million, four hundred seventy-six thousand, four hundred sixty-nine".

Divisors: 1 3 11 33 43 129 473 1419 2659 4789 7977 14367 29249 52679 87747 114337 158037 205927 343011 617781 1257707 2265197 3773121 6795591 12733951 38201853 140073461 420220383 547559893 1642679679 6023158823 18069476469