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18869514070 = 25111634632273
BaseRepresentation
bin10001100100101101…
…011110111101010110
31210201001022122002111
4101210231132331112
5302121043422240
612400223101234
71235414136361
oct214455367526
953631278074
1018869514070
118003392230
1237a744181a
131a19411a54
14cb00cd0d8
157568b21ea
hex464b5ef56

18869514070 has 64 divisors (see below), whose sum is σ = 37377137664. Its totient is φ = 6801822720.

The previous prime is 18869514067. The next prime is 18869514127. The reversal of 18869514070 is 7041596881.

It is a super-2 number, since 2×188695140702 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 8300454 + ... + 8302726.

It is an arithmetic number, because the mean of its divisors is an integer number (584017776).

Almost surely, 218869514070 is an apocalyptic number.

18869514070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18869514070 is a deficient number, since it is larger than the sum of its proper divisors (18507623594).

18869514070 is a wasteful number, since it uses less digits than its factorization.

18869514070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2917.

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 18869514070 in words is "eighteen billion, eight hundred sixty-nine million, five hundred fourteen thousand, seventy".

Divisors: 1 2 5 10 11 22 55 110 163 326 463 815 926 1630 1793 2273 2315 3586 4546 4630 5093 8965 10186 11365 17930 22730 25003 25465 50006 50930 75469 125015 150938 250030 370499 377345 740998 754690 830159 1052399 1660318 1852495 2104798 3704990 4075489 4150795 5261995 8150978 8301590 10523990 11576389 20377445 23152778 40754890 57881945 115763890 171541037 343082074 857705185 1715410370 1886951407 3773902814 9434757035 18869514070