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8942160969 = 3472192792
BaseRepresentation
bin10000101001111111…
…01000110001001001
3212002012020211210000
420110333220301021
5121303143122334
64035153313213
7434411054100
oct102477506111
925065224700
108942160969
113879686985
121896865809
13ac67abb11
1460b87b037
153750a4299
hex214fe8c49

8942160969 has 135 divisors (see below), whose sum is σ = 16610051997. Its totient is φ = 4779592272.

The previous prime is 8942160943. The next prime is 8942160977. The reversal of 8942160969 is 9690612498.

The square root of 8942160969 is 94563.

It is a perfect power (a square), and thus also a powerful number.

8942160969 is a `hidden beast` number, since 8 + 9 + 4 + 21 + 609 + 6 + 9 = 666.

It is not a de Polignac number, because 8942160969 - 213 = 8942152777 is a prime.

It is a super-2 number, since 2×89421609692 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8942160979) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 113191872 + ... + 113191950.

Almost surely, 28942160969 is an apocalyptic number.

8942160969 is the 94563-rd square number.

8942160969 is the 47282-nd centered octagonal number.

It is an amenable number.

8942160969 is a deficient number, since it is larger than the sum of its proper divisors (7667891028).

8942160969 is an equidigital number, since it uses as much as digits as its factorization.

8942160969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The cubic root of 8942160969 is about 2075.6183162609.

The spelling of 8942160969 in words is "eight billion, nine hundred forty-two million, one hundred sixty thousand, nine hundred sixty-nine".

Divisors: 1 3 7 9 19 21 27 49 57 63 79 81 133 147 171 189 237 361 399 441 513 553 567 711 931 1083 1197 1323 1501 1539 1659 2133 2527 2793 3249 3591 3871 3969 4503 4977 6241 6399 7581 8379 9747 10507 10773 11613 13509 14931 17689 18723 22743 25137 28519 29241 31521 34839 40527 43687 44793 53067 56169 68229 73549 75411 85557 94563 104517 118579 121581 131061 159201 168507 199633 204687 220647 256671 283689 305809 313551 355737 393183 477603 505521 598899 661941 770013 830053 851067 917427 1067211 1179549 1397431 1432809 1796697 1985823 2253001 2310039 2490159 2752281 3201633 3538647 4192293 5390091 5810371 5957469 6759003 7470477 8256843 9604899 12576879 15771007 16170273 17431113 20277009 22411431 24770529 37730637 47313021 52293339 60831027 67234293 110397049 113191911 141939063 156880017 182493081 331191147 425817189 470640051 993573441 1277451567 2980720323 8942160969