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6909189969204 = 2232792479397987
BaseRepresentation
bin110010010001010101111…
…0100000101010100110100
3220110111211022212102220100
41210202223310011110310
51401200010113003304
622410012115234100
71312113111511635
oct144425364052464
926414738772810
106909189969204
112224197685116
129370698a8930
133b16c2a508b3
1419c59991b88c
15beacd1b8439
hex648abd05534

6909189969204 has 72 divisors (see below), whose sum is σ = 17686865356160. Its totient is φ = 2273795701632.

The previous prime is 6909189969161. The next prime is 6909189969233. The reversal of 6909189969204 is 4029699819096.

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 23 ways as a sum of consecutive naturals, for example, 70462299 + ... + 70560285.

Almost surely, 26909189969204 is an apocalyptic number.

It is an amenable number.

6909189969204 is an abundant number, since it is smaller than the sum of its proper divisors (10777675386956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6909189969204 is a wasteful number, since it uses less digits than its factorization.

6909189969204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122869 (or 122864 counting only the distinct ones).

The product of its (nonzero) digits is 136048896, while the sum is 72.

The spelling of 6909189969204 in words is "six trillion, nine hundred nine billion, one hundred eighty-nine million, nine hundred sixty-nine thousand, two hundred four".

Divisors: 1 2 3 4 6 9 12 18 36 79 158 237 316 474 711 948 1422 2844 24793 49586 74379 97987 99172 148758 195974 223137 293961 297516 391948 446274 587922 881883 892548 1175844 1763766 1958647 3527532 3917294 5875941 7740973 7834588 11751882 15481946 17627823 23222919 23503764 30963892 35255646 46445838 69668757 70511292 92891676 139337514 278675028 2429391691 4858783382 7288175073 9717566764 14576350146 21864525219 29152700292 43729050438 87458100876 191921943589 383843887178 575765830767 767687774356 1151531661534 1727297492301 2303063323068 3454594984602 6909189969204